Home / 3,825.20-5,278.40-2,232.02

Finding the Fourth Proportional to 3,825.20, 5,278.40 and 2,232.02

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Solution

The fourth proportional to 3,825.20, 5,278.40 and 2,232.02 is: 3,079.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.20 : 5,278.40 = 2,232.02 : x
  2. Step 2: Convert to fraction form
    3,825.20/5,278.40 = 2,232.02/x
  3. Step 3: Cross multiply
    3,825.20x = 5,278.40 × 2,232.02
  4. Step 4: Simplify right side
    3,825.20x = 11,781,494.37
  5. Step 5: Solve for x
    x = 11,781,494.37/3,825.20
  6. Step 6: Final answer
    x = 3,079.97

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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.