Home / 3,825.28-5,279.70-2,253.70

Finding the Fourth Proportional to 3,825.28, 5,279.70 and 2,253.70

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Solution

The fourth proportional to 3,825.28, 5,279.70 and 2,253.70 is: 3,110.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.28 : 5,279.70 = 2,253.70 : x
  2. Step 2: Convert to fraction form
    3,825.28/5,279.70 = 2,253.70/x
  3. Step 3: Cross multiply
    3,825.28x = 5,279.70 × 2,253.70
  4. Step 4: Simplify right side
    3,825.28x = 11,898,859.89
  5. Step 5: Solve for x
    x = 11,898,859.89/3,825.28
  6. Step 6: Final answer
    x = 3,110.59

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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.