Home / 2,286.11-3,429.14-747.11

Finding the Fourth Proportional to 2,286.11, 3,429.14 and 747.11

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Solution

The fourth proportional to 2,286.11, 3,429.14 and 747.11 is: 1,120.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.11 : 3,429.14 = 747.11 : x
  2. Step 2: Convert to fraction form
    2,286.11/3,429.14 = 747.11/x
  3. Step 3: Cross multiply
    2,286.11x = 3,429.14 × 747.11
  4. Step 4: Simplify right side
    2,286.11x = 2,561,923.90
  5. Step 5: Solve for x
    x = 2,561,923.90/2,286.11
  6. Step 6: Final answer
    x = 1,120.65

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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.