Brian’s family drinks a gallon of milk in 3 days. How much milk does his family drink in 5 days? The proportion for this situation is 3 days 1 gallon = 5 days x gallons . Which equation can you use to solve the problem?
[tex] \frac{3}{1} = \frac{5}{x} [/tex] All you have to make sure of is that the days are in the same place of the fraction (numerator or denominator) and that the gallons are in the other.