Home / 7,944.71-11,917.17-2,101.28

Finding the Fourth Proportional to 7,944.71, 11,917.17 and 2,101.28

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Solution

The fourth proportional to 7,944.71, 11,917.17 and 2,101.28 is: 3,151.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,944.71 : 11,917.17 = 2,101.28 : x
  2. Step 2: Convert to fraction form
    7,944.71/11,917.17 = 2,101.28/x
  3. Step 3: Cross multiply
    7,944.71x = 11,917.17 × 2,101.28
  4. Step 4: Simplify right side
    7,944.71x = 25,041,251.39
  5. Step 5: Solve for x
    x = 25,041,251.39/7,944.71
  6. Step 6: Final answer
    x = 3,151.94

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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.