Home / 3,639.12-5,022.12-2,067.48

Finding the Fourth Proportional to 3,639.12, 5,022.12 and 2,067.48

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Solution

The fourth proportional to 3,639.12, 5,022.12 and 2,067.48 is: 2,853.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.12 : 5,022.12 = 2,067.48 : x
  2. Step 2: Convert to fraction form
    3,639.12/5,022.12 = 2,067.48/x
  3. Step 3: Cross multiply
    3,639.12x = 5,022.12 × 2,067.48
  4. Step 4: Simplify right side
    3,639.12x = 10,383,132.66
  5. Step 5: Solve for x
    x = 10,383,132.66/3,639.12
  6. Step 6: Final answer
    x = 2,853.20

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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.