Home / 3,639.70-5,022.90-2,067.68

Finding the Fourth Proportional to 3,639.70, 5,022.90 and 2,067.68

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Solution

The fourth proportional to 3,639.70, 5,022.90 and 2,067.68 is: 2,853.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.70 : 5,022.90 = 2,067.68 : x
  2. Step 2: Convert to fraction form
    3,639.70/5,022.90 = 2,067.68/x
  3. Step 3: Cross multiply
    3,639.70x = 5,022.90 × 2,067.68
  4. Step 4: Simplify right side
    3,639.70x = 10,385,749.87
  5. Step 5: Solve for x
    x = 10,385,749.87/3,639.70
  6. Step 6: Final answer
    x = 2,853.46

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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.