Home / 4,781.97-7,164.85-2,929.21

Finding the Fourth Proportional to 4,781.97, 7,164.85 and 2,929.21

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Solution

The fourth proportional to 4,781.97, 7,164.85 and 2,929.21 is: 4,388.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.97 : 7,164.85 = 2,929.21 : x
  2. Step 2: Convert to fraction form
    4,781.97/7,164.85 = 2,929.21/x
  3. Step 3: Cross multiply
    4,781.97x = 7,164.85 × 2,929.21
  4. Step 4: Simplify right side
    4,781.97x = 20,987,335.62
  5. Step 5: Solve for x
    x = 20,987,335.62/4,781.97
  6. Step 6: Final answer
    x = 4,388.85

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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.