Home / 3,972.32-5,480.70-2,481.76

Finding the Fourth Proportional to 3,972.32, 5,480.70 and 2,481.76

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Solution

The fourth proportional to 3,972.32, 5,480.70 and 2,481.76 is: 3,424.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.32 : 5,480.70 = 2,481.76 : x
  2. Step 2: Convert to fraction form
    3,972.32/5,480.70 = 2,481.76/x
  3. Step 3: Cross multiply
    3,972.32x = 5,480.70 × 2,481.76
  4. Step 4: Simplify right side
    3,972.32x = 13,601,748.75
  5. Step 5: Solve for x
    x = 13,601,748.75/3,972.32
  6. Step 6: Final answer
    x = 3,424.13

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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.