Home / 3,671.91-5,067.49-2,078.57

Finding the Fourth Proportional to 3,671.91, 5,067.49 and 2,078.57

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Solution

The fourth proportional to 3,671.91, 5,067.49 and 2,078.57 is: 2,868.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,671.91 : 5,067.49 = 2,078.57 : x
  2. Step 2: Convert to fraction form
    3,671.91/5,067.49 = 2,078.57/x
  3. Step 3: Cross multiply
    3,671.91x = 5,067.49 × 2,078.57
  4. Step 4: Simplify right side
    3,671.91x = 10,533,132.69
  5. Step 5: Solve for x
    x = 10,533,132.69/3,671.91
  6. Step 6: Final answer
    x = 2,868.57

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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.