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Finding the Fourth Proportional to 3,572.28, 4,929.42 and 2,000.28

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Solution

The fourth proportional to 3,572.28, 4,929.42 and 2,000.28 is: 2,760.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.28 : 4,929.42 = 2,000.28 : x
  2. Step 2: Convert to fraction form
    3,572.28/4,929.42 = 2,000.28/x
  3. Step 3: Cross multiply
    3,572.28x = 4,929.42 × 2,000.28
  4. Step 4: Simplify right side
    3,572.28x = 9,860,220.24
  5. Step 5: Solve for x
    x = 9,860,220.24/3,572.28
  6. Step 6: Final answer
    x = 2,760.20

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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.