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Finding the Fourth Proportional to 937.11, 1,292.88 and 563.79

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Solution

The fourth proportional to 937.11, 1,292.88 and 563.79 is: 777.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.11 : 1,292.88 = 563.79 : x
  2. Step 2: Convert to fraction form
    937.11/1,292.88 = 563.79/x
  3. Step 3: Cross multiply
    937.11x = 1,292.88 × 563.79
  4. Step 4: Simplify right side
    937.11x = 728,912.82
  5. Step 5: Solve for x
    x = 728,912.82/937.11
  6. Step 6: Final answer
    x = 777.83

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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.