Home / 3,879.06-5,816.16-2,561.42

Finding the Fourth Proportional to 3,879.06, 5,816.16 and 2,561.42

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Solution

The fourth proportional to 3,879.06, 5,816.16 and 2,561.42 is: 3,840.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.06 : 5,816.16 = 2,561.42 : x
  2. Step 2: Convert to fraction form
    3,879.06/5,816.16 = 2,561.42/x
  3. Step 3: Cross multiply
    3,879.06x = 5,816.16 × 2,561.42
  4. Step 4: Simplify right side
    3,879.06x = 14,897,599.47
  5. Step 5: Solve for x
    x = 14,897,599.47/3,879.06
  6. Step 6: Final answer
    x = 3,840.52

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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.