Home / 5,210.38-7,815.57-2,132.38

Finding the Fourth Proportional to 5,210.38, 7,815.57 and 2,132.38

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Solution

The fourth proportional to 5,210.38, 7,815.57 and 2,132.38 is: 3,198.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.38 : 7,815.57 = 2,132.38 : x
  2. Step 2: Convert to fraction form
    5,210.38/7,815.57 = 2,132.38/x
  3. Step 3: Cross multiply
    5,210.38x = 7,815.57 × 2,132.38
  4. Step 4: Simplify right side
    5,210.38x = 16,665,765.16
  5. Step 5: Solve for x
    x = 16,665,765.16/5,210.38
  6. Step 6: Final answer
    x = 3,198.57

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1.5x scale

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.