Home / 2,771.06-4,138.92-2,381.96

Finding the Fourth Proportional to 2,771.06, 4,138.92 and 2,381.96

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Solution

The fourth proportional to 2,771.06, 4,138.92 and 2,381.96 is: 3,557.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.06 : 4,138.92 = 2,381.96 : x
  2. Step 2: Convert to fraction form
    2,771.06/4,138.92 = 2,381.96/x
  3. Step 3: Cross multiply
    2,771.06x = 4,138.92 × 2,381.96
  4. Step 4: Simplify right side
    2,771.06x = 9,858,752.23
  5. Step 5: Solve for x
    x = 9,858,752.23/2,771.06
  6. Step 6: Final answer
    x = 3,557.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.