Home / 3,872.70-5,344.83-2,194.65

Finding the Fourth Proportional to 3,872.70, 5,344.83 and 2,194.65

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Solution

The fourth proportional to 3,872.70, 5,344.83 and 2,194.65 is: 3,028.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.70 : 5,344.83 = 2,194.65 : x
  2. Step 2: Convert to fraction form
    3,872.70/5,344.83 = 2,194.65/x
  3. Step 3: Cross multiply
    3,872.70x = 5,344.83 × 2,194.65
  4. Step 4: Simplify right side
    3,872.70x = 11,730,031.16
  5. Step 5: Solve for x
    x = 11,730,031.16/3,872.70
  6. Step 6: Final answer
    x = 3,028.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.