Home / 5,057.09-6,981.35-3,169.79

Finding the Fourth Proportional to 5,057.09, 6,981.35 and 3,169.79

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Solution

The fourth proportional to 5,057.09, 6,981.35 and 3,169.79 is: 4,375.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,057.09 : 6,981.35 = 3,169.79 : x
  2. Step 2: Convert to fraction form
    5,057.09/6,981.35 = 3,169.79/x
  3. Step 3: Cross multiply
    5,057.09x = 6,981.35 × 3,169.79
  4. Step 4: Simplify right side
    5,057.09x = 22,129,413.42
  5. Step 5: Solve for x
    x = 22,129,413.42/5,057.09
  6. Step 6: Final answer
    x = 4,375.92

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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.