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Finding the Fourth Proportional to 2,736, 3,778.56 and 2,716.80

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Solution

The fourth proportional to 2,736, 3,778.56 and 2,716.80 is: 3,752.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,736 : 3,778.56 = 2,716.80 : x
  2. Step 2: Convert to fraction form
    2,736/3,778.56 = 2,716.80/x
  3. Step 3: Cross multiply
    2,736x = 3,778.56 × 2,716.80
  4. Step 4: Simplify right side
    2,736x = 10,265,591.81
  5. Step 5: Solve for x
    x = 10,265,591.81/2,736
  6. Step 6: Final answer
    x = 3,752.04

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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.