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Finding the Fourth Proportional to 1,253.98, 1,879.25 and 1,067.92

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Solution

The fourth proportional to 1,253.98, 1,879.25 and 1,067.92 is: 1,600.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253.98 : 1,879.25 = 1,067.92 : x
  2. Step 2: Convert to fraction form
    1,253.98/1,879.25 = 1,067.92/x
  3. Step 3: Cross multiply
    1,253.98x = 1,879.25 × 1,067.92
  4. Step 4: Simplify right side
    1,253.98x = 2,006,883.32
  5. Step 5: Solve for x
    x = 2,006,883.32/1,253.98
  6. Step 6: Final answer
    x = 1,600.41

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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.