Home / 3,991.39-5,508.08-2,222.96

Finding the Fourth Proportional to 3,991.39, 5,508.08 and 2,222.96

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Solution

The fourth proportional to 3,991.39, 5,508.08 and 2,222.96 is: 3,067.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.39 : 5,508.08 = 2,222.96 : x
  2. Step 2: Convert to fraction form
    3,991.39/5,508.08 = 2,222.96/x
  3. Step 3: Cross multiply
    3,991.39x = 5,508.08 × 2,222.96
  4. Step 4: Simplify right side
    3,991.39x = 12,244,223.70
  5. Step 5: Solve for x
    x = 12,244,223.70/3,991.39
  6. Step 6: Final answer
    x = 3,067.66

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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.