Home / 3,640.32-5,456.52-1,447.92

Finding the Fourth Proportional to 3,640.32, 5,456.52 and 1,447.92

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Solution

The fourth proportional to 3,640.32, 5,456.52 and 1,447.92 is: 2,170.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.32 : 5,456.52 = 1,447.92 : x
  2. Step 2: Convert to fraction form
    3,640.32/5,456.52 = 1,447.92/x
  3. Step 3: Cross multiply
    3,640.32x = 5,456.52 × 1,447.92
  4. Step 4: Simplify right side
    3,640.32x = 7,900,604.44
  5. Step 5: Solve for x
    x = 7,900,604.44/3,640.32
  6. Step 6: Final answer
    x = 2,170.30

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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.