Home / 7,944.66-11,917.41-2,101.11

Finding the Fourth Proportional to 7,944.66, 11,917.41 and 2,101.11

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Solution

The fourth proportional to 7,944.66, 11,917.41 and 2,101.11 is: 3,151.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,944.66 : 11,917.41 = 2,101.11 : x
  2. Step 2: Convert to fraction form
    7,944.66/11,917.41 = 2,101.11/x
  3. Step 3: Cross multiply
    7,944.66x = 11,917.41 × 2,101.11
  4. Step 4: Simplify right side
    7,944.66x = 25,039,789.33
  5. Step 5: Solve for x
    x = 25,039,789.33/7,944.66
  6. Step 6: Final answer
    x = 3,151.78

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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.