Home / 6,679.31-9,217.90-3,847.43

Finding the Fourth Proportional to 6,679.31, 9,217.90 and 3,847.43

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Solution

The fourth proportional to 6,679.31, 9,217.90 and 3,847.43 is: 5,309.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.31 : 9,217.90 = 3,847.43 : x
  2. Step 2: Convert to fraction form
    6,679.31/9,217.90 = 3,847.43/x
  3. Step 3: Cross multiply
    6,679.31x = 9,217.90 × 3,847.43
  4. Step 4: Simplify right side
    6,679.31x = 35,465,252.85
  5. Step 5: Solve for x
    x = 35,465,252.85/6,679.31
  6. Step 6: Final answer
    x = 5,309.72

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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.