Home / 6,286.29-9,422.90-3,121.64

Finding the Fourth Proportional to 6,286.29, 9,422.90 and 3,121.64

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Solution

The fourth proportional to 6,286.29, 9,422.90 and 3,121.64 is: 4,679.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,286.29 : 9,422.90 = 3,121.64 : x
  2. Step 2: Convert to fraction form
    6,286.29/9,422.90 = 3,121.64/x
  3. Step 3: Cross multiply
    6,286.29x = 9,422.90 × 3,121.64
  4. Step 4: Simplify right side
    6,286.29x = 29,414,901.56
  5. Step 5: Solve for x
    x = 29,414,901.56/6,286.29
  6. Step 6: Final answer
    x = 4,679.21

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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.