Home / 3,902.80-5,849.44-2,790.56

Finding the Fourth Proportional to 3,902.80, 5,849.44 and 2,790.56

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Solution

The fourth proportional to 3,902.80, 5,849.44 and 2,790.56 is: 4,182.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.80 : 5,849.44 = 2,790.56 : x
  2. Step 2: Convert to fraction form
    3,902.80/5,849.44 = 2,790.56/x
  3. Step 3: Cross multiply
    3,902.80x = 5,849.44 × 2,790.56
  4. Step 4: Simplify right side
    3,902.80x = 16,323,213.29
  5. Step 5: Solve for x
    x = 16,323,213.29/3,902.80
  6. Step 6: Final answer
    x = 4,182.44

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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.