Home / 3,725.76-5,587.11-1,385.91

Finding the Fourth Proportional to 3,725.76, 5,587.11 and 1,385.91

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Solution

The fourth proportional to 3,725.76, 5,587.11 and 1,385.91 is: 2,078.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.76 : 5,587.11 = 1,385.91 : x
  2. Step 2: Convert to fraction form
    3,725.76/5,587.11 = 1,385.91/x
  3. Step 3: Cross multiply
    3,725.76x = 5,587.11 × 1,385.91
  4. Step 4: Simplify right side
    3,725.76x = 7,743,231.62
  5. Step 5: Solve for x
    x = 7,743,231.62/3,725.76
  6. Step 6: Final answer
    x = 2,078.30

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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.