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Finding the Fourth Proportional to 634.86, 953.37 and 625.14

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Solution

The fourth proportional to 634.86, 953.37 and 625.14 is: 938.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.86 : 953.37 = 625.14 : x
  2. Step 2: Convert to fraction form
    634.86/953.37 = 625.14/x
  3. Step 3: Cross multiply
    634.86x = 953.37 × 625.14
  4. Step 4: Simplify right side
    634.86x = 595,989.72
  5. Step 5: Solve for x
    x = 595,989.72/634.86
  6. Step 6: Final answer
    x = 938.77

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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.