Here are a few example problems and solutions:
Let's set up a proportion: 3/4 = x/12, where x is the distance traveled. Cross-multiply and solve for x: 3 × 12 = 4x, 36 = 4x, x = 9. The marble travels 9 units. marbleslides rationals answers
A marble is released from point A and travels to point B, covering 3/4 of the distance. If the distance from A to B is 12 units, how far does the marble travel? Here are a few example problems and solutions: