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Finding the Fourth Proportional to 2,671.29, 4,006.40 and 723.03

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Solution

The fourth proportional to 2,671.29, 4,006.40 and 723.03 is: 1,084.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,671.29 : 4,006.40 = 723.03 : x
  2. Step 2: Convert to fraction form
    2,671.29/4,006.40 = 723.03/x
  3. Step 3: Cross multiply
    2,671.29x = 4,006.40 × 723.03
  4. Step 4: Simplify right side
    2,671.29x = 2,896,743.78
  5. Step 5: Solve for x
    x = 2,896,743.78/2,671.29
  6. Step 6: Final answer
    x = 1,084.40

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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.