Home / 3,824.97-5,278.14-2,146.15

Finding the Fourth Proportional to 3,824.97, 5,278.14 and 2,146.15

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Solution

The fourth proportional to 3,824.97, 5,278.14 and 2,146.15 is: 2,961.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,824.97 : 5,278.14 = 2,146.15 : x
  2. Step 2: Convert to fraction form
    3,824.97/5,278.14 = 2,146.15/x
  3. Step 3: Cross multiply
    3,824.97x = 5,278.14 × 2,146.15
  4. Step 4: Simplify right side
    3,824.97x = 11,327,680.16
  5. Step 5: Solve for x
    x = 11,327,680.16/3,824.97
  6. Step 6: Final answer
    x = 2,961.51

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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.