Home / 3,976.45-5,487.10-2,207.87

Finding the Fourth Proportional to 3,976.45, 5,487.10 and 2,207.87

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Solution

The fourth proportional to 3,976.45, 5,487.10 and 2,207.87 is: 3,046.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.45 : 5,487.10 = 2,207.87 : x
  2. Step 2: Convert to fraction form
    3,976.45/5,487.10 = 2,207.87/x
  3. Step 3: Cross multiply
    3,976.45x = 5,487.10 × 2,207.87
  4. Step 4: Simplify right side
    3,976.45x = 12,114,770.52
  5. Step 5: Solve for x
    x = 12,114,770.52/3,976.45
  6. Step 6: Final answer
    x = 3,046.63

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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.