Home / 2,286.42-3,429.19-1,115.25

Finding the Fourth Proportional to 2,286.42, 3,429.19 and 1,115.25

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Solution

The fourth proportional to 2,286.42, 3,429.19 and 1,115.25 is: 1,672.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.42 : 3,429.19 = 1,115.25 : x
  2. Step 2: Convert to fraction form
    2,286.42/3,429.19 = 1,115.25/x
  3. Step 3: Cross multiply
    2,286.42x = 3,429.19 × 1,115.25
  4. Step 4: Simplify right side
    2,286.42x = 3,824,404.15
  5. Step 5: Solve for x
    x = 3,824,404.15/2,286.42
  6. Step 6: Final answer
    x = 1,672.66

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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.