Home / 3,715.68-5,565.96-2,981.28

Finding the Fourth Proportional to 3,715.68, 5,565.96 and 2,981.28

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Solution

The fourth proportional to 3,715.68, 5,565.96 and 2,981.28 is: 4,465.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.68 : 5,565.96 = 2,981.28 : x
  2. Step 2: Convert to fraction form
    3,715.68/5,565.96 = 2,981.28/x
  3. Step 3: Cross multiply
    3,715.68x = 5,565.96 × 2,981.28
  4. Step 4: Simplify right side
    3,715.68x = 16,593,685.23
  5. Step 5: Solve for x
    x = 16,593,685.23/3,715.68
  6. Step 6: Final answer
    x = 4,465.85

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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.