Home / 4,161.57-5,745.35-3,105.13

Finding the Fourth Proportional to 4,161.57, 5,745.35 and 3,105.13

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Solution

The fourth proportional to 4,161.57, 5,745.35 and 3,105.13 is: 4,286.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,161.57 : 5,745.35 = 3,105.13 : x
  2. Step 2: Convert to fraction form
    4,161.57/5,745.35 = 3,105.13/x
  3. Step 3: Cross multiply
    4,161.57x = 5,745.35 × 3,105.13
  4. Step 4: Simplify right side
    4,161.57x = 17,840,058.65
  5. Step 5: Solve for x
    x = 17,840,058.65/4,161.57
  6. Step 6: Final answer
    x = 4,286.86

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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.