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Finding the Fourth Proportional to 4,839.54, 6,679.80 and 2,744.88

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Solution

The fourth proportional to 4,839.54, 6,679.80 and 2,744.88 is: 3,788.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,839.54 : 6,679.80 = 2,744.88 : x
  2. Step 2: Convert to fraction form
    4,839.54/6,679.80 = 2,744.88/x
  3. Step 3: Cross multiply
    4,839.54x = 6,679.80 × 2,744.88
  4. Step 4: Simplify right side
    4,839.54x = 18,335,249.42
  5. Step 5: Solve for x
    x = 18,335,249.42/4,839.54
  6. Step 6: Final answer
    x = 3,788.63

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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.