Home / 5,169.11-7,138.42-4,418.71

Finding the Fourth Proportional to 5,169.11, 7,138.42 and 4,418.71

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Solution

The fourth proportional to 5,169.11, 7,138.42 and 4,418.71 is: 6,102.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,169.11 : 7,138.42 = 4,418.71 : x
  2. Step 2: Convert to fraction form
    5,169.11/7,138.42 = 4,418.71/x
  3. Step 3: Cross multiply
    5,169.11x = 7,138.42 × 4,418.71
  4. Step 4: Simplify right side
    5,169.11x = 31,542,578.95
  5. Step 5: Solve for x
    x = 31,542,578.95/5,169.11
  6. Step 6: Final answer
    x = 6,102.14

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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.