Home / 3,825.12-5,278.26-2,231.34

Finding the Fourth Proportional to 3,825.12, 5,278.26 and 2,231.34

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Solution

The fourth proportional to 3,825.12, 5,278.26 and 2,231.34 is: 3,079.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.12 : 5,278.26 = 2,231.34 : x
  2. Step 2: Convert to fraction form
    3,825.12/5,278.26 = 2,231.34/x
  3. Step 3: Cross multiply
    3,825.12x = 5,278.26 × 2,231.34
  4. Step 4: Simplify right side
    3,825.12x = 11,777,592.67
  5. Step 5: Solve for x
    x = 11,777,592.67/3,825.12
  6. Step 6: Final answer
    x = 3,079.01

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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.