Home / 5,716.13-7,887.71-3,198.11

Finding the Fourth Proportional to 5,716.13, 7,887.71 and 3,198.11

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Solution

The fourth proportional to 5,716.13, 7,887.71 and 3,198.11 is: 4,413.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,716.13 : 7,887.71 = 3,198.11 : x
  2. Step 2: Convert to fraction form
    5,716.13/7,887.71 = 3,198.11/x
  3. Step 3: Cross multiply
    5,716.13x = 7,887.71 × 3,198.11
  4. Step 4: Simplify right side
    5,716.13x = 25,225,732.78
  5. Step 5: Solve for x
    x = 25,225,732.78/5,716.13
  6. Step 6: Final answer
    x = 4,413.08

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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.