Home / 3,879.56-5,816.91-2,561.92

Finding the Fourth Proportional to 3,879.56, 5,816.91 and 2,561.92

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Solution

The fourth proportional to 3,879.56, 5,816.91 and 2,561.92 is: 3,841.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.56 : 5,816.91 = 2,561.92 : x
  2. Step 2: Convert to fraction form
    3,879.56/5,816.91 = 2,561.92/x
  3. Step 3: Cross multiply
    3,879.56x = 5,816.91 × 2,561.92
  4. Step 4: Simplify right side
    3,879.56x = 14,902,458.07
  5. Step 5: Solve for x
    x = 14,902,458.07/3,879.56
  6. Step 6: Final answer
    x = 3,841.28

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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.