Home / 3,976-5,487.12-2,404.48

Finding the Fourth Proportional to 3,976, 5,487.12 and 2,404.48

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Solution

The fourth proportional to 3,976, 5,487.12 and 2,404.48 is: 3,318.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976 : 5,487.12 = 2,404.48 : x
  2. Step 2: Convert to fraction form
    3,976/5,487.12 = 2,404.48/x
  3. Step 3: Cross multiply
    3,976x = 5,487.12 × 2,404.48
  4. Step 4: Simplify right side
    3,976x = 13,193,670.30
  5. Step 5: Solve for x
    x = 13,193,670.30/3,976
  6. Step 6: Final answer
    x = 3,318.33

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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.