Home / 3,163.11-4,736.42-2,121.45

Finding the Fourth Proportional to 3,163.11, 4,736.42 and 2,121.45

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Solution

The fourth proportional to 3,163.11, 4,736.42 and 2,121.45 is: 3,176.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.11 : 4,736.42 = 2,121.45 : x
  2. Step 2: Convert to fraction form
    3,163.11/4,736.42 = 2,121.45/x
  3. Step 3: Cross multiply
    3,163.11x = 4,736.42 × 2,121.45
  4. Step 4: Simplify right side
    3,163.11x = 10,048,078.21
  5. Step 5: Solve for x
    x = 10,048,078.21/3,163.11
  6. Step 6: Final answer
    x = 3,176.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.