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Finding the Fourth Proportional to 637.59, 961.49 and 628.92

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Solution

The fourth proportional to 637.59, 961.49 and 628.92 is: 948.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.59 : 961.49 = 628.92 : x
  2. Step 2: Convert to fraction form
    637.59/961.49 = 628.92/x
  3. Step 3: Cross multiply
    637.59x = 961.49 × 628.92
  4. Step 4: Simplify right side
    637.59x = 604,697.15
  5. Step 5: Solve for x
    x = 604,697.15/637.59
  6. Step 6: Final answer
    x = 948.41

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.