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Finding the Fourth Proportional to 3,872.82, 5,809.23 and 2,723.70

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Solution

The fourth proportional to 3,872.82, 5,809.23 and 2,723.70 is: 4,085.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.82 : 5,809.23 = 2,723.70 : x
  2. Step 2: Convert to fraction form
    3,872.82/5,809.23 = 2,723.70/x
  3. Step 3: Cross multiply
    3,872.82x = 5,809.23 × 2,723.70
  4. Step 4: Simplify right side
    3,872.82x = 15,822,599.75
  5. Step 5: Solve for x
    x = 15,822,599.75/3,872.82
  6. Step 6: Final answer
    x = 4,085.55

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1.5x scale

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.