Home / 6,968.20-9,613.76-3,981.92

Finding the Fourth Proportional to 6,968.20, 9,613.76 and 3,981.92

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Solution

The fourth proportional to 6,968.20, 9,613.76 and 3,981.92 is: 5,493.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,968.20 : 9,613.76 = 3,981.92 : x
  2. Step 2: Convert to fraction form
    6,968.20/9,613.76 = 3,981.92/x
  3. Step 3: Cross multiply
    6,968.20x = 9,613.76 × 3,981.92
  4. Step 4: Simplify right side
    6,968.20x = 38,281,195.60
  5. Step 5: Solve for x
    x = 38,281,195.60/6,968.20
  6. Step 6: Final answer
    x = 5,493.70

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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.