Home / 7,922.42-11,882.72-2,079.49

Finding the Fourth Proportional to 7,922.42, 11,882.72 and 2,079.49

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Solution

The fourth proportional to 7,922.42, 11,882.72 and 2,079.49 is: 3,118.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,922.42 : 11,882.72 = 2,079.49 : x
  2. Step 2: Convert to fraction form
    7,922.42/11,882.72 = 2,079.49/x
  3. Step 3: Cross multiply
    7,922.42x = 11,882.72 × 2,079.49
  4. Step 4: Simplify right side
    7,922.42x = 24,709,983.49
  5. Step 5: Solve for x
    x = 24,709,983.49/7,922.42
  6. Step 6: Final answer
    x = 3,118.99

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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.