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Finding the Fourth Proportional to 2,481.06, 3,720.96 and 726.06

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Solution

The fourth proportional to 2,481.06, 3,720.96 and 726.06 is: 1,088.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,481.06 : 3,720.96 = 726.06 : x
  2. Step 2: Convert to fraction form
    2,481.06/3,720.96 = 726.06/x
  3. Step 3: Cross multiply
    2,481.06x = 3,720.96 × 726.06
  4. Step 4: Simplify right side
    2,481.06x = 2,701,640.22
  5. Step 5: Solve for x
    x = 2,701,640.22/2,481.06
  6. Step 6: Final answer
    x = 1,088.91

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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.