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Finding the Fourth Proportional to 1,086.38, 1,500.44 and 736.46

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Solution

The fourth proportional to 1,086.38, 1,500.44 and 736.46 is: 1,017.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086.38 : 1,500.44 = 736.46 : x
  2. Step 2: Convert to fraction form
    1,086.38/1,500.44 = 736.46/x
  3. Step 3: Cross multiply
    1,086.38x = 1,500.44 × 736.46
  4. Step 4: Simplify right side
    1,086.38x = 1,105,002.86
  5. Step 5: Solve for x
    x = 1,105,002.86/1,086.38
  6. Step 6: Final answer
    x = 1,017.15

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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.