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Finding the Fourth Proportional to 7,073.73, 9,762.03 and 3,929.92

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Solution

The fourth proportional to 7,073.73, 9,762.03 and 3,929.92 is: 5,423.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,073.73 : 9,762.03 = 3,929.92 : x
  2. Step 2: Convert to fraction form
    7,073.73/9,762.03 = 3,929.92/x
  3. Step 3: Cross multiply
    7,073.73x = 9,762.03 × 3,929.92
  4. Step 4: Simplify right side
    7,073.73x = 38,363,972.53
  5. Step 5: Solve for x
    x = 38,363,972.53/7,073.73
  6. Step 6: Final answer
    x = 5,423.44

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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.