Kevin deposited $\$ 3000$ into an account with a $3.4 \%$ annual interest rate, compounded quarterly. Assuming that no withdrawals are made, how long will it take for the investment to grow to $\$ 3237$ ?
Do not round any intermediate computations, and round your answer to the nearest hundredth.
Final Answer: It will take approximately \(\boxed{2.25}\) years for the investment to grow to $3237.
Step 1 :Given that Kevin deposited $3000 into an account with a 3.4% annual interest rate, compounded quarterly. We are to find how long it will take for the investment to grow to $3237.
Step 2 :We can use the formula for compound interest, which is \(A = P(1 + \frac{r}{n})^{nt}\), where:
Step 3 :\(A\) is the amount of money accumulated after n years, including interest.
Step 4 :\(P\) is the principal amount (the initial amount of money).
Step 5 :\(r\) is the annual interest rate (in decimal).
Step 6 :\(n\) is the number of times that interest is compounded per year.
Step 7 :\(t\) is the time the money is invested for in years.
Step 8 :In this case, we know the following:
Step 9 :\(A = \$3237\)
Step 10 :\(P = \$3000\)
Step 11 :\(r = 3.4\% = 0.034\)
Step 12 :\(n = 4\) (since interest is compounded quarterly)
Step 13 :We need to solve for \(t\). We can rearrange the formula to solve for \(t\) as follows:
Step 14 :\(t = \frac{\log(\frac{A}{P})}{n \cdot \log(1 + \frac{r}{n})}\)
Step 15 :Substituting the known values into the equation, we get:
Step 16 :\(t = \frac{\log(\frac{3237}{3000})}{4 \cdot \log(1 + \frac{0.034}{4})}\)
Step 17 :Solving the equation, we find that \(t = 2.2458052304618548\)
Step 18 :Rounding to the nearest hundredth, we get \(t = 2.25\)
Step 19 :Final Answer: It will take approximately \(\boxed{2.25}\) years for the investment to grow to $3237.