Home / 5,150.13-7,109.13-3,163.38

Finding the Fourth Proportional to 5,150.13, 7,109.13 and 3,163.38

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Solution

The fourth proportional to 5,150.13, 7,109.13 and 3,163.38 is: 4,366.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,150.13 : 7,109.13 = 3,163.38 : x
  2. Step 2: Convert to fraction form
    5,150.13/7,109.13 = 3,163.38/x
  3. Step 3: Cross multiply
    5,150.13x = 7,109.13 × 3,163.38
  4. Step 4: Simplify right side
    5,150.13x = 22,488,879.66
  5. Step 5: Solve for x
    x = 22,488,879.66/5,150.13
  6. Step 6: Final answer
    x = 4,366.66

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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.