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Finding the Fourth Proportional to 641.92, 958.02 and 625.52

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Solution

The fourth proportional to 641.92, 958.02 and 625.52 is: 933.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    641.92 : 958.02 = 625.52 : x
  2. Step 2: Convert to fraction form
    641.92/958.02 = 625.52/x
  3. Step 3: Cross multiply
    641.92x = 958.02 × 625.52
  4. Step 4: Simplify right side
    641.92x = 599,260.67
  5. Step 5: Solve for x
    x = 599,260.67/641.92
  6. Step 6: Final answer
    x = 933.54

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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.