Home / 1,715.28-2,572.20-935.92

Finding the Fourth Proportional to 1,715.28, 2,572.20 and 935.92

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Solution

The fourth proportional to 1,715.28, 2,572.20 and 935.92 is: 1,403.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.28 : 2,572.20 = 935.92 : x
  2. Step 2: Convert to fraction form
    1,715.28/2,572.20 = 935.92/x
  3. Step 3: Cross multiply
    1,715.28x = 2,572.20 × 935.92
  4. Step 4: Simplify right side
    1,715.28x = 2,407,373.42
  5. Step 5: Solve for x
    x = 2,407,373.42/1,715.28
  6. Step 6: Final answer
    x = 1,403.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.