Home / 6,679.40-9,217.18-3,695.20

Finding the Fourth Proportional to 6,679.40, 9,217.18 and 3,695.20

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Solution

The fourth proportional to 6,679.40, 9,217.18 and 3,695.20 is: 5,099.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.40 : 9,217.18 = 3,695.20 : x
  2. Step 2: Convert to fraction form
    6,679.40/9,217.18 = 3,695.20/x
  3. Step 3: Cross multiply
    6,679.40x = 9,217.18 × 3,695.20
  4. Step 4: Simplify right side
    6,679.40x = 34,059,323.54
  5. Step 5: Solve for x
    x = 34,059,323.54/6,679.40
  6. Step 6: Final answer
    x = 5,099.16

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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.