Home / 5,422.71-8,135.19-3,083.79

Finding the Fourth Proportional to 5,422.71, 8,135.19 and 3,083.79

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Solution

The fourth proportional to 5,422.71, 8,135.19 and 3,083.79 is: 4,626.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.71 : 8,135.19 = 3,083.79 : x
  2. Step 2: Convert to fraction form
    5,422.71/8,135.19 = 3,083.79/x
  3. Step 3: Cross multiply
    5,422.71x = 8,135.19 × 3,083.79
  4. Step 4: Simplify right side
    5,422.71x = 25,087,217.57
  5. Step 5: Solve for x
    x = 25,087,217.57/5,422.71
  6. Step 6: Final answer
    x = 4,626.32

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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.