Home / 2,186.24-3,279.20-725.44

Finding the Fourth Proportional to 2,186.24, 3,279.20 and 725.44

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Solution

The fourth proportional to 2,186.24, 3,279.20 and 725.44 is: 1,088.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.24 : 3,279.20 = 725.44 : x
  2. Step 2: Convert to fraction form
    2,186.24/3,279.20 = 725.44/x
  3. Step 3: Cross multiply
    2,186.24x = 3,279.20 × 725.44
  4. Step 4: Simplify right side
    2,186.24x = 2,378,862.85
  5. Step 5: Solve for x
    x = 2,378,862.85/2,186.24
  6. Step 6: Final answer
    x = 1,088.11

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1.5x scale

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.