Home / 7,680.92-11,512.38-2,933.97

Finding the Fourth Proportional to 7,680.92, 11,512.38 and 2,933.97

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Solution

The fourth proportional to 7,680.92, 11,512.38 and 2,933.97 is: 4,397.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.92 : 11,512.38 = 2,933.97 : x
  2. Step 2: Convert to fraction form
    7,680.92/11,512.38 = 2,933.97/x
  3. Step 3: Cross multiply
    7,680.92x = 11,512.38 × 2,933.97
  4. Step 4: Simplify right side
    7,680.92x = 33,776,919.99
  5. Step 5: Solve for x
    x = 33,776,919.99/7,680.92
  6. Step 6: Final answer
    x = 4,397.51

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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.