Home / 3,879.29-5,344.01-2,882.84

Finding the Fourth Proportional to 3,879.29, 5,344.01 and 2,882.84

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Solution

The fourth proportional to 3,879.29, 5,344.01 and 2,882.84 is: 3,971.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.29 : 5,344.01 = 2,882.84 : x
  2. Step 2: Convert to fraction form
    3,879.29/5,344.01 = 2,882.84/x
  3. Step 3: Cross multiply
    3,879.29x = 5,344.01 × 2,882.84
  4. Step 4: Simplify right side
    3,879.29x = 15,405,884.65
  5. Step 5: Solve for x
    x = 15,405,884.65/3,879.29
  6. Step 6: Final answer
    x = 3,971.32

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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.