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Finding the Fourth Proportional to 3,639.42, 5,022.03 and 2,067.42

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Solution

The fourth proportional to 3,639.42, 5,022.03 and 2,067.42 is: 2,852.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.42 : 5,022.03 = 2,067.42 : x
  2. Step 2: Convert to fraction form
    3,639.42/5,022.03 = 2,067.42/x
  3. Step 3: Cross multiply
    3,639.42x = 5,022.03 × 2,067.42
  4. Step 4: Simplify right side
    3,639.42x = 10,382,645.26
  5. Step 5: Solve for x
    x = 10,382,645.26/3,639.42
  6. Step 6: Final answer
    x = 2,852.83

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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.