Home / 3,132.80-4,318.08-2,385.92

Finding the Fourth Proportional to 3,132.80, 4,318.08 and 2,385.92

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Solution

The fourth proportional to 3,132.80, 4,318.08 and 2,385.92 is: 3,288.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.80 : 4,318.08 = 2,385.92 : x
  2. Step 2: Convert to fraction form
    3,132.80/4,318.08 = 2,385.92/x
  3. Step 3: Cross multiply
    3,132.80x = 4,318.08 × 2,385.92
  4. Step 4: Simplify right side
    3,132.80x = 10,302,593.43
  5. Step 5: Solve for x
    x = 10,302,593.43/3,132.80
  6. Step 6: Final answer
    x = 3,288.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.