Home / 3,972.11-5,481.23-2,203.70

Finding the Fourth Proportional to 3,972.11, 5,481.23 and 2,203.70

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Solution

The fourth proportional to 3,972.11, 5,481.23 and 2,203.70 is: 3,040.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.11 : 5,481.23 = 2,203.70 : x
  2. Step 2: Convert to fraction form
    3,972.11/5,481.23 = 2,203.70/x
  3. Step 3: Cross multiply
    3,972.11x = 5,481.23 × 2,203.70
  4. Step 4: Simplify right side
    3,972.11x = 12,078,948.13
  5. Step 5: Solve for x
    x = 12,078,948.13/3,972.11
  6. Step 6: Final answer
    x = 3,040.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.