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Finding the Fourth Proportional to 635.92, 952.92 and 379.28

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Solution

The fourth proportional to 635.92, 952.92 and 379.28 is: 568.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.92 : 952.92 = 379.28 : x
  2. Step 2: Convert to fraction form
    635.92/952.92 = 379.28/x
  3. Step 3: Cross multiply
    635.92x = 952.92 × 379.28
  4. Step 4: Simplify right side
    635.92x = 361,423.50
  5. Step 5: Solve for x
    x = 361,423.50/635.92
  6. Step 6: Final answer
    x = 568.35

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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.