Home / 3,608.42-4,976.24-2,279.75

Finding the Fourth Proportional to 3,608.42, 4,976.24 and 2,279.75

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Solution

The fourth proportional to 3,608.42, 4,976.24 and 2,279.75 is: 3,143.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.42 : 4,976.24 = 2,279.75 : x
  2. Step 2: Convert to fraction form
    3,608.42/4,976.24 = 2,279.75/x
  3. Step 3: Cross multiply
    3,608.42x = 4,976.24 × 2,279.75
  4. Step 4: Simplify right side
    3,608.42x = 11,344,546.86
  5. Step 5: Solve for x
    x = 11,344,546.86/3,608.42
  6. Step 6: Final answer
    x = 3,143.91

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1.5x scale

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.