Home / 2,481.20-3,721.59-726.06

Finding the Fourth Proportional to 2,481.20, 3,721.59 and 726.06

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Solution

The fourth proportional to 2,481.20, 3,721.59 and 726.06 is: 1,089.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,481.20 : 3,721.59 = 726.06 : x
  2. Step 2: Convert to fraction form
    2,481.20/3,721.59 = 726.06/x
  3. Step 3: Cross multiply
    2,481.20x = 3,721.59 × 726.06
  4. Step 4: Simplify right side
    2,481.20x = 2,702,097.64
  5. Step 5: Solve for x
    x = 2,702,097.64/2,481.20
  6. Step 6: Final answer
    x = 1,089.03

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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.