Home / 6,769.52-10,128.76-3,997.70

Finding the Fourth Proportional to 6,769.52, 10,128.76 and 3,997.70

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Solution

The fourth proportional to 6,769.52, 10,128.76 and 3,997.70 is: 5,981.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,769.52 : 10,128.76 = 3,997.70 : x
  2. Step 2: Convert to fraction form
    6,769.52/10,128.76 = 3,997.70/x
  3. Step 3: Cross multiply
    6,769.52x = 10,128.76 × 3,997.70
  4. Step 4: Simplify right side
    6,769.52x = 40,491,743.85
  5. Step 5: Solve for x
    x = 40,491,743.85/6,769.52
  6. Step 6: Final answer
    x = 5,981.48

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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.