Home / 3,825.31-5,278.90-2,146.71

Finding the Fourth Proportional to 3,825.31, 5,278.90 and 2,146.71

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Solution

The fourth proportional to 3,825.31, 5,278.90 and 2,146.71 is: 2,962.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.31 : 5,278.90 = 2,146.71 : x
  2. Step 2: Convert to fraction form
    3,825.31/5,278.90 = 2,146.71/x
  3. Step 3: Cross multiply
    3,825.31x = 5,278.90 × 2,146.71
  4. Step 4: Simplify right side
    3,825.31x = 11,332,267.42
  5. Step 5: Solve for x
    x = 11,332,267.42/3,825.31
  6. Step 6: Final answer
    x = 2,962.44

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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.