Home / 5,179.06-7,761.03-2,578.42

Finding the Fourth Proportional to 5,179.06, 7,761.03 and 2,578.42

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Solution

The fourth proportional to 5,179.06, 7,761.03 and 2,578.42 is: 3,863.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.06 : 7,761.03 = 2,578.42 : x
  2. Step 2: Convert to fraction form
    5,179.06/7,761.03 = 2,578.42/x
  3. Step 3: Cross multiply
    5,179.06x = 7,761.03 × 2,578.42
  4. Step 4: Simplify right side
    5,179.06x = 20,011,194.97
  5. Step 5: Solve for x
    x = 20,011,194.97/5,179.06
  6. Step 6: Final answer
    x = 3,863.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.