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Finding the Fourth Proportional to 2,691.98, 4,037.98 and 744.19

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Solution

The fourth proportional to 2,691.98, 4,037.98 and 744.19 is: 1,116.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.98 : 4,037.98 = 744.19 : x
  2. Step 2: Convert to fraction form
    2,691.98/4,037.98 = 744.19/x
  3. Step 3: Cross multiply
    2,691.98x = 4,037.98 × 744.19
  4. Step 4: Simplify right side
    2,691.98x = 3,005,011.68
  5. Step 5: Solve for x
    x = 3,005,011.68/2,691.98
  6. Step 6: Final answer
    x = 1,116.28

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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.