Home / 3,976.16-5,487.12-2,207.72

Finding the Fourth Proportional to 3,976.16, 5,487.12 and 2,207.72

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Solution

The fourth proportional to 3,976.16, 5,487.12 and 2,207.72 is: 3,046.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.16 : 5,487.12 = 2,207.72 : x
  2. Step 2: Convert to fraction form
    3,976.16/5,487.12 = 2,207.72/x
  3. Step 3: Cross multiply
    3,976.16x = 5,487.12 × 2,207.72
  4. Step 4: Simplify right side
    3,976.16x = 12,113,997.13
  5. Step 5: Solve for x
    x = 12,113,997.13/3,976.16
  6. Step 6: Final answer
    x = 3,046.66

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1.5x scale

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.