Home / 3,945.62-5,443.97-2,671.85

Finding the Fourth Proportional to 3,945.62, 5,443.97 and 2,671.85

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Solution

The fourth proportional to 3,945.62, 5,443.97 and 2,671.85 is: 3,686.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.62 : 5,443.97 = 2,671.85 : x
  2. Step 2: Convert to fraction form
    3,945.62/5,443.97 = 2,671.85/x
  3. Step 3: Cross multiply
    3,945.62x = 5,443.97 × 2,671.85
  4. Step 4: Simplify right side
    3,945.62x = 14,545,471.24
  5. Step 5: Solve for x
    x = 14,545,471.24/3,945.62
  6. Step 6: Final answer
    x = 3,686.49

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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.