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Finding the Fourth Proportional to 937.61, 1,293.32 and 657.44

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Solution

The fourth proportional to 937.61, 1,293.32 and 657.44 is: 906.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.61 : 1,293.32 = 657.44 : x
  2. Step 2: Convert to fraction form
    937.61/1,293.32 = 657.44/x
  3. Step 3: Cross multiply
    937.61x = 1,293.32 × 657.44
  4. Step 4: Simplify right side
    937.61x = 850,275.48
  5. Step 5: Solve for x
    x = 850,275.48/937.61
  6. Step 6: Final answer
    x = 906.86

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1.5x scale

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.