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Finding the Fourth Proportional to 1,469.38, 2,027.88 and 806.37

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Solution

The fourth proportional to 1,469.38, 2,027.88 and 806.37 is: 1,112.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,469.38 : 2,027.88 = 806.37 : x
  2. Step 2: Convert to fraction form
    1,469.38/2,027.88 = 806.37/x
  3. Step 3: Cross multiply
    1,469.38x = 2,027.88 × 806.37
  4. Step 4: Simplify right side
    1,469.38x = 1,635,207.42
  5. Step 5: Solve for x
    x = 1,635,207.42/1,469.38
  6. Step 6: Final answer
    x = 1,112.86

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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.