Home / 6,613.62-9,920.46-2,231.12

Finding the Fourth Proportional to 6,613.62, 9,920.46 and 2,231.12

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Solution

The fourth proportional to 6,613.62, 9,920.46 and 2,231.12 is: 3,346.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,613.62 : 9,920.46 = 2,231.12 : x
  2. Step 2: Convert to fraction form
    6,613.62/9,920.46 = 2,231.12/x
  3. Step 3: Cross multiply
    6,613.62x = 9,920.46 × 2,231.12
  4. Step 4: Simplify right side
    6,613.62x = 22,133,687.11
  5. Step 5: Solve for x
    x = 22,133,687.11/6,613.62
  6. Step 6: Final answer
    x = 3,346.68

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1.5x scale

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.