Home / 3,976.11-5,486.94-2,207.68

Finding the Fourth Proportional to 3,976.11, 5,486.94 and 2,207.68

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Solution

The fourth proportional to 3,976.11, 5,486.94 and 2,207.68 is: 3,046.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.11 : 5,486.94 = 2,207.68 : x
  2. Step 2: Convert to fraction form
    3,976.11/5,486.94 = 2,207.68/x
  3. Step 3: Cross multiply
    3,976.11x = 5,486.94 × 2,207.68
  4. Step 4: Simplify right side
    3,976.11x = 12,113,407.70
  5. Step 5: Solve for x
    x = 12,113,407.70/3,976.11
  6. Step 6: Final answer
    x = 3,046.55

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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.