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Finding the Fourth Proportional to 3,638.52, 5,454 and 1,446.30

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Solution

The fourth proportional to 3,638.52, 5,454 and 1,446.30 is: 2,167.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.52 : 5,454 = 1,446.30 : x
  2. Step 2: Convert to fraction form
    3,638.52/5,454 = 1,446.30/x
  3. Step 3: Cross multiply
    3,638.52x = 5,454 × 1,446.30
  4. Step 4: Simplify right side
    3,638.52x = 7,888,120.20
  5. Step 5: Solve for x
    x = 7,888,120.20/3,638.52
  6. Step 6: Final answer
    x = 2,167.95

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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.