Home / 3,639.86-5,022.87-2,223.03

Finding the Fourth Proportional to 3,639.86, 5,022.87 and 2,223.03

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Solution

The fourth proportional to 3,639.86, 5,022.87 and 2,223.03 is: 3,067.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.86 : 5,022.87 = 2,223.03 : x
  2. Step 2: Convert to fraction form
    3,639.86/5,022.87 = 2,223.03/x
  3. Step 3: Cross multiply
    3,639.86x = 5,022.87 × 2,223.03
  4. Step 4: Simplify right side
    3,639.86x = 11,165,990.70
  5. Step 5: Solve for x
    x = 11,165,990.70/3,639.86
  6. Step 6: Final answer
    x = 3,067.70

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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.