Home / 3,849.13-5,311.80-2,080.74

Finding the Fourth Proportional to 3,849.13, 5,311.80 and 2,080.74

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Solution

The fourth proportional to 3,849.13, 5,311.80 and 2,080.74 is: 2,871.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,849.13 : 5,311.80 = 2,080.74 : x
  2. Step 2: Convert to fraction form
    3,849.13/5,311.80 = 2,080.74/x
  3. Step 3: Cross multiply
    3,849.13x = 5,311.80 × 2,080.74
  4. Step 4: Simplify right side
    3,849.13x = 11,052,474.73
  5. Step 5: Solve for x
    x = 11,052,474.73/3,849.13
  6. Step 6: Final answer
    x = 2,871.42

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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.