Home / 7,981.83-11,972.40-2,716.64

Finding the Fourth Proportional to 7,981.83, 11,972.40 and 2,716.64

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Solution

The fourth proportional to 7,981.83, 11,972.40 and 2,716.64 is: 4,074.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.83 : 11,972.40 = 2,716.64 : x
  2. Step 2: Convert to fraction form
    7,981.83/11,972.40 = 2,716.64/x
  3. Step 3: Cross multiply
    7,981.83x = 11,972.40 × 2,716.64
  4. Step 4: Simplify right side
    7,981.83x = 32,524,640.87
  5. Step 5: Solve for x
    x = 32,524,640.87/7,981.83
  6. Step 6: Final answer
    x = 4,074.84

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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.