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Finding the Fourth Proportional to 937.04, 1,292.56 and 587.12

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Solution

The fourth proportional to 937.04, 1,292.56 and 587.12 is: 809.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.04 : 1,292.56 = 587.12 : x
  2. Step 2: Convert to fraction form
    937.04/1,292.56 = 587.12/x
  3. Step 3: Cross multiply
    937.04x = 1,292.56 × 587.12
  4. Step 4: Simplify right side
    937.04x = 758,887.83
  5. Step 5: Solve for x
    x = 758,887.83/937.04
  6. Step 6: Final answer
    x = 809.88

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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.