Home / 3,079.82-4,251.96-1,961.71

Finding the Fourth Proportional to 3,079.82, 4,251.96 and 1,961.71

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Solution

The fourth proportional to 3,079.82, 4,251.96 and 1,961.71 is: 2,708.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.82 : 4,251.96 = 1,961.71 : x
  2. Step 2: Convert to fraction form
    3,079.82/4,251.96 = 1,961.71/x
  3. Step 3: Cross multiply
    3,079.82x = 4,251.96 × 1,961.71
  4. Step 4: Simplify right side
    3,079.82x = 8,341,101.82
  5. Step 5: Solve for x
    x = 8,341,101.82/3,079.82
  6. Step 6: Final answer
    x = 2,708.31

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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.