Home / 3,825.20-5,279.91-2,253.80

Finding the Fourth Proportional to 3,825.20, 5,279.91 and 2,253.80

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Solution

The fourth proportional to 3,825.20, 5,279.91 and 2,253.80 is: 3,110.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.20 : 5,279.91 = 2,253.80 : x
  2. Step 2: Convert to fraction form
    3,825.20/5,279.91 = 2,253.80/x
  3. Step 3: Cross multiply
    3,825.20x = 5,279.91 × 2,253.80
  4. Step 4: Simplify right side
    3,825.20x = 11,899,861.16
  5. Step 5: Solve for x
    x = 11,899,861.16/3,825.20
  6. Step 6: Final answer
    x = 3,110.91

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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.