Home / 5,716.20-7,888.67-3,198.16

Finding the Fourth Proportional to 5,716.20, 7,888.67 and 3,198.16

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Solution

The fourth proportional to 5,716.20, 7,888.67 and 3,198.16 is: 4,413.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,716.20 : 7,888.67 = 3,198.16 : x
  2. Step 2: Convert to fraction form
    5,716.20/7,888.67 = 3,198.16/x
  3. Step 3: Cross multiply
    5,716.20x = 7,888.67 × 3,198.16
  4. Step 4: Simplify right side
    5,716.20x = 25,229,222.72
  5. Step 5: Solve for x
    x = 25,229,222.72/5,716.20
  6. Step 6: Final answer
    x = 4,413.63

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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.