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Finding the Fourth Proportional to 3,609.87, 4,983.89 and 2,768.97

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Solution

The fourth proportional to 3,609.87, 4,983.89 and 2,768.97 is: 3,822.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.87 : 4,983.89 = 2,768.97 : x
  2. Step 2: Convert to fraction form
    3,609.87/4,983.89 = 2,768.97/x
  3. Step 3: Cross multiply
    3,609.87x = 4,983.89 × 2,768.97
  4. Step 4: Simplify right side
    3,609.87x = 13,800,228.05
  5. Step 5: Solve for x
    x = 13,800,228.05/3,609.87
  6. Step 6: Final answer
    x = 3,822.92

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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.