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Finding the Fourth Proportional to 637.86, 952.10 and 636.24

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Solution

The fourth proportional to 637.86, 952.10 and 636.24 is: 949.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.86 : 952.10 = 636.24 : x
  2. Step 2: Convert to fraction form
    637.86/952.10 = 636.24/x
  3. Step 3: Cross multiply
    637.86x = 952.10 × 636.24
  4. Step 4: Simplify right side
    637.86x = 605,764.10
  5. Step 5: Solve for x
    x = 605,764.10/637.86
  6. Step 6: Final answer
    x = 949.68

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.