Home / 3,882.78-5,358.24-2,310.96

Finding the Fourth Proportional to 3,882.78, 5,358.24 and 2,310.96

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Solution

The fourth proportional to 3,882.78, 5,358.24 and 2,310.96 is: 3,189.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882.78 : 5,358.24 = 2,310.96 : x
  2. Step 2: Convert to fraction form
    3,882.78/5,358.24 = 2,310.96/x
  3. Step 3: Cross multiply
    3,882.78x = 5,358.24 × 2,310.96
  4. Step 4: Simplify right side
    3,882.78x = 12,382,678.31
  5. Step 5: Solve for x
    x = 12,382,678.31/3,882.78
  6. Step 6: Final answer
    x = 3,189.13

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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.