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Finding the Fourth Proportional to 1,494.75, 2,241.97 and 672.79

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Solution

The fourth proportional to 1,494.75, 2,241.97 and 672.79 is: 1,009.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,494.75 : 2,241.97 = 672.79 : x
  2. Step 2: Convert to fraction form
    1,494.75/2,241.97 = 672.79/x
  3. Step 3: Cross multiply
    1,494.75x = 2,241.97 × 672.79
  4. Step 4: Simplify right side
    1,494.75x = 1,508,375.00
  5. Step 5: Solve for x
    x = 1,508,375.00/1,494.75
  6. Step 6: Final answer
    x = 1,009.12

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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.