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Finding the Fourth Proportional to 731.98, 1,095.36 and 586.66

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Solution

The fourth proportional to 731.98, 1,095.36 and 586.66 is: 877.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    731.98 : 1,095.36 = 586.66 : x
  2. Step 2: Convert to fraction form
    731.98/1,095.36 = 586.66/x
  3. Step 3: Cross multiply
    731.98x = 1,095.36 × 586.66
  4. Step 4: Simplify right side
    731.98x = 642,601.01
  5. Step 5: Solve for x
    x = 642,601.01/731.98
  6. Step 6: Final answer
    x = 877.90

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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.