Home / 3,825.50-5,279.40-2,254.10

Finding the Fourth Proportional to 3,825.50, 5,279.40 and 2,254.10

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Solution

The fourth proportional to 3,825.50, 5,279.40 and 2,254.10 is: 3,110.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.50 : 5,279.40 = 2,254.10 : x
  2. Step 2: Convert to fraction form
    3,825.50/5,279.40 = 2,254.10/x
  3. Step 3: Cross multiply
    3,825.50x = 5,279.40 × 2,254.10
  4. Step 4: Simplify right side
    3,825.50x = 11,900,295.54
  5. Step 5: Solve for x
    x = 11,900,295.54/3,825.50
  6. Step 6: Final answer
    x = 3,110.78

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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.