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Finding the Fourth Proportional to 1,951.50, 2,693.08 and 1,067.28

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Solution

The fourth proportional to 1,951.50, 2,693.08 and 1,067.28 is: 1,472.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951.50 : 2,693.08 = 1,067.28 : x
  2. Step 2: Convert to fraction form
    1,951.50/2,693.08 = 1,067.28/x
  3. Step 3: Cross multiply
    1,951.50x = 2,693.08 × 1,067.28
  4. Step 4: Simplify right side
    1,951.50x = 2,874,270.42
  5. Step 5: Solve for x
    x = 2,874,270.42/1,951.50
  6. Step 6: Final answer
    x = 1,472.85

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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.