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Finding the Fourth Proportional to 1,255.97, 1,883.31 and 736.09

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Solution

The fourth proportional to 1,255.97, 1,883.31 and 736.09 is: 1,103.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255.97 : 1,883.31 = 736.09 : x
  2. Step 2: Convert to fraction form
    1,255.97/1,883.31 = 736.09/x
  3. Step 3: Cross multiply
    1,255.97x = 1,883.31 × 736.09
  4. Step 4: Simplify right side
    1,255.97x = 1,386,285.66
  5. Step 5: Solve for x
    x = 1,386,285.66/1,255.97
  6. Step 6: Final answer
    x = 1,103.76

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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.