Home / 3,872.24-5,808.36-1,679.84

Finding the Fourth Proportional to 3,872.24, 5,808.36 and 1,679.84

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Solution

The fourth proportional to 3,872.24, 5,808.36 and 1,679.84 is: 2,519.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.24 : 5,808.36 = 1,679.84 : x
  2. Step 2: Convert to fraction form
    3,872.24/5,808.36 = 1,679.84/x
  3. Step 3: Cross multiply
    3,872.24x = 5,808.36 × 1,679.84
  4. Step 4: Simplify right side
    3,872.24x = 9,757,115.46
  5. Step 5: Solve for x
    x = 9,757,115.46/3,872.24
  6. Step 6: Final answer
    x = 2,519.76

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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.