Home / 3,966.28-5,473.98-2,287.78

Finding the Fourth Proportional to 3,966.28, 5,473.98 and 2,287.78

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Solution

The fourth proportional to 3,966.28, 5,473.98 and 2,287.78 is: 3,157.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.28 : 5,473.98 = 2,287.78 : x
  2. Step 2: Convert to fraction form
    3,966.28/5,473.98 = 2,287.78/x
  3. Step 3: Cross multiply
    3,966.28x = 5,473.98 × 2,287.78
  4. Step 4: Simplify right side
    3,966.28x = 12,523,261.96
  5. Step 5: Solve for x
    x = 12,523,261.96/3,966.28
  6. Step 6: Final answer
    x = 3,157.43

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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.