Algebra help

Question

If a car can travel 340 miles on 14 gallons of gas, then how many gallons are needed for this car to travel 544 miles?

Answer 1

set up a proportion

340 miles/14 gallons=544/g

cross multiply

340g=14*544

340g=7616

g=7616/340

g=22.4 gallons are needed

or,...

544/340=1.6

the car is going to travel 1.6 times as far

1.6*14=22.4 gallons