Home / 6,679.28-9,217.68-4,162.88

Finding the Fourth Proportional to 6,679.28, 9,217.68 and 4,162.88

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Solution

The fourth proportional to 6,679.28, 9,217.68 and 4,162.88 is: 5,744.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.28 : 9,217.68 = 4,162.88 : x
  2. Step 2: Convert to fraction form
    6,679.28/9,217.68 = 4,162.88/x
  3. Step 3: Cross multiply
    6,679.28x = 9,217.68 × 4,162.88
  4. Step 4: Simplify right side
    6,679.28x = 38,372,095.72
  5. Step 5: Solve for x
    x = 38,372,095.72/6,679.28
  6. Step 6: Final answer
    x = 5,744.94

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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.