Home / 2,481.81-3,721.89-1,165.15

Finding the Fourth Proportional to 2,481.81, 3,721.89 and 1,165.15

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Solution

The fourth proportional to 2,481.81, 3,721.89 and 1,165.15 is: 1,747.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,481.81 : 3,721.89 = 1,165.15 : x
  2. Step 2: Convert to fraction form
    2,481.81/3,721.89 = 1,165.15/x
  3. Step 3: Cross multiply
    2,481.81x = 3,721.89 × 1,165.15
  4. Step 4: Simplify right side
    2,481.81x = 4,336,560.13
  5. Step 5: Solve for x
    x = 4,336,560.13/2,481.81
  6. Step 6: Final answer
    x = 1,747.34

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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.