Home / 7,680.96-11,519.46-2,134.80

Finding the Fourth Proportional to 7,680.96, 11,519.46 and 2,134.80

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Solution

The fourth proportional to 7,680.96, 11,519.46 and 2,134.80 is: 3,201.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.96 : 11,519.46 = 2,134.80 : x
  2. Step 2: Convert to fraction form
    7,680.96/11,519.46 = 2,134.80/x
  3. Step 3: Cross multiply
    7,680.96x = 11,519.46 × 2,134.80
  4. Step 4: Simplify right side
    7,680.96x = 24,591,743.21
  5. Step 5: Solve for x
    x = 24,591,743.21/7,680.96
  6. Step 6: Final answer
    x = 3,201.65

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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.