Home / 3,639.50-5,022.44-2,147.48

Finding the Fourth Proportional to 3,639.50, 5,022.44 and 2,147.48

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Solution

The fourth proportional to 3,639.50, 5,022.44 and 2,147.48 is: 2,963.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.50 : 5,022.44 = 2,147.48 : x
  2. Step 2: Convert to fraction form
    3,639.50/5,022.44 = 2,147.48/x
  3. Step 3: Cross multiply
    3,639.50x = 5,022.44 × 2,147.48
  4. Step 4: Simplify right side
    3,639.50x = 10,785,589.45
  5. Step 5: Solve for x
    x = 10,785,589.45/3,639.50
  6. Step 6: Final answer
    x = 2,963.48

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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.