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Finding the Fourth Proportional to 2,671.49, 4,006.76 and 723.44

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Solution

The fourth proportional to 2,671.49, 4,006.76 and 723.44 is: 1,085.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,671.49 : 4,006.76 = 723.44 : x
  2. Step 2: Convert to fraction form
    2,671.49/4,006.76 = 723.44/x
  3. Step 3: Cross multiply
    2,671.49x = 4,006.76 × 723.44
  4. Step 4: Simplify right side
    2,671.49x = 2,898,626.80
  5. Step 5: Solve for x
    x = 2,898,626.80/2,671.49
  6. Step 6: Final answer
    x = 1,085.02

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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.