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Finding the Fourth Proportional to 937.48, 1,293.78 and 523.48

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Solution

The fourth proportional to 937.48, 1,293.78 and 523.48 is: 722.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.48 : 1,293.78 = 523.48 : x
  2. Step 2: Convert to fraction form
    937.48/1,293.78 = 523.48/x
  3. Step 3: Cross multiply
    937.48x = 1,293.78 × 523.48
  4. Step 4: Simplify right side
    937.48x = 677,267.95
  5. Step 5: Solve for x
    x = 677,267.95/937.48
  6. Step 6: Final answer
    x = 722.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.