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Finding the Fourth Proportional to 3,857.44, 5,319.48 and 3,795.88

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Solution

The fourth proportional to 3,857.44, 5,319.48 and 3,795.88 is: 5,234.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.44 : 5,319.48 = 3,795.88 : x
  2. Step 2: Convert to fraction form
    3,857.44/5,319.48 = 3,795.88/x
  3. Step 3: Cross multiply
    3,857.44x = 5,319.48 × 3,795.88
  4. Step 4: Simplify right side
    3,857.44x = 20,192,107.74
  5. Step 5: Solve for x
    x = 20,192,107.74/3,857.44
  6. Step 6: Final answer
    x = 5,234.59

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1.5x scale

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.