Home / 7,844.28-11,767.76-2,648.92

Finding the Fourth Proportional to 7,844.28, 11,767.76 and 2,648.92

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Solution

The fourth proportional to 7,844.28, 11,767.76 and 2,648.92 is: 3,973.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,844.28 : 11,767.76 = 2,648.92 : x
  2. Step 2: Convert to fraction form
    7,844.28/11,767.76 = 2,648.92/x
  3. Step 3: Cross multiply
    7,844.28x = 11,767.76 × 2,648.92
  4. Step 4: Simplify right side
    7,844.28x = 31,171,854.82
  5. Step 5: Solve for x
    x = 31,171,854.82/7,844.28
  6. Step 6: Final answer
    x = 3,973.83

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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.