Home / 3,977.92-5,491.29-2,864.44

Finding the Fourth Proportional to 3,977.92, 5,491.29 and 2,864.44

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Solution

The fourth proportional to 3,977.92, 5,491.29 and 2,864.44 is: 3,954.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.92 : 5,491.29 = 2,864.44 : x
  2. Step 2: Convert to fraction form
    3,977.92/5,491.29 = 2,864.44/x
  3. Step 3: Cross multiply
    3,977.92x = 5,491.29 × 2,864.44
  4. Step 4: Simplify right side
    3,977.92x = 15,729,470.73
  5. Step 5: Solve for x
    x = 15,729,470.73/3,977.92
  6. Step 6: Final answer
    x = 3,954.19

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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.