Home / 2,186.10-3,279.54-725.34

Finding the Fourth Proportional to 2,186.10, 3,279.54 and 725.34

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Solution

The fourth proportional to 2,186.10, 3,279.54 and 725.34 is: 1,088.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.10 : 3,279.54 = 725.34 : x
  2. Step 2: Convert to fraction form
    2,186.10/3,279.54 = 725.34/x
  3. Step 3: Cross multiply
    2,186.10x = 3,279.54 × 725.34
  4. Step 4: Simplify right side
    2,186.10x = 2,378,781.54
  5. Step 5: Solve for x
    x = 2,378,781.54/2,186.10
  6. Step 6: Final answer
    x = 1,088.14

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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.