### Home > CCAA8 > Chapter 6 Unit 7 > Lesson CCA: 6.2.2 > Problem 6-76

6-76.

During a two-month period gasoline increased from $4.10 per gallon to $4.35 per gallon. Assuming prices increased in a geometric sequence, what was the monthly multiplier and what was the percent increase?

To find the monthly multiplier, write an equation and solve for the variable.

New price = (original price)(multiplier for month 1)(multiplier for month 2)

$4.35 = $4.10(*x*)(*x*) or $4.35 = $4.10*x*^{2}

*x* ≈ 1.03 Therefore the percent increase is 3%.