Home / 2,248.32-3,370.17-861.28

Finding the Fourth Proportional to 2,248.32, 3,370.17 and 861.28

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Solution

The fourth proportional to 2,248.32, 3,370.17 and 861.28 is: 1,291.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,248.32 : 3,370.17 = 861.28 : x
  2. Step 2: Convert to fraction form
    2,248.32/3,370.17 = 861.28/x
  3. Step 3: Cross multiply
    2,248.32x = 3,370.17 × 861.28
  4. Step 4: Simplify right side
    2,248.32x = 2,902,660.02
  5. Step 5: Solve for x
    x = 2,902,660.02/2,248.32
  6. Step 6: Final answer
    x = 1,291.04

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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.