Home / 7,981.97-11,974.37-2,716.71

Finding the Fourth Proportional to 7,981.97, 11,974.37 and 2,716.71

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Solution

The fourth proportional to 7,981.97, 11,974.37 and 2,716.71 is: 4,075.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.97 : 11,974.37 = 2,716.71 : x
  2. Step 2: Convert to fraction form
    7,981.97/11,974.37 = 2,716.71/x
  3. Step 3: Cross multiply
    7,981.97x = 11,974.37 × 2,716.71
  4. Step 4: Simplify right side
    7,981.97x = 32,530,877.14
  5. Step 5: Solve for x
    x = 32,530,877.14/7,981.97
  6. Step 6: Final answer
    x = 4,075.55

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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.