Home / 4,781.92-7,179.12-3,687.04

Finding the Fourth Proportional to 4,781.92, 7,179.12 and 3,687.04

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Solution

The fourth proportional to 4,781.92, 7,179.12 and 3,687.04 is: 5,535.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.92 : 7,179.12 = 3,687.04 : x
  2. Step 2: Convert to fraction form
    4,781.92/7,179.12 = 3,687.04/x
  3. Step 3: Cross multiply
    4,781.92x = 7,179.12 × 3,687.04
  4. Step 4: Simplify right side
    4,781.92x = 26,469,702.60
  5. Step 5: Solve for x
    x = 26,469,702.60/4,781.92
  6. Step 6: Final answer
    x = 5,535.37

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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.