Home / 2,371.28-3,560.92-1,980.88

Finding the Fourth Proportional to 2,371.28, 3,560.92 and 1,980.88

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Solution

The fourth proportional to 2,371.28, 3,560.92 and 1,980.88 is: 2,974.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,371.28 : 3,560.92 = 1,980.88 : x
  2. Step 2: Convert to fraction form
    2,371.28/3,560.92 = 1,980.88/x
  3. Step 3: Cross multiply
    2,371.28x = 3,560.92 × 1,980.88
  4. Step 4: Simplify right side
    2,371.28x = 7,053,755.21
  5. Step 5: Solve for x
    x = 7,053,755.21/2,371.28
  6. Step 6: Final answer
    x = 2,974.66

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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.