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Finding the Fourth Proportional to 3,893.82, 5,834.89 and 2,015.44

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Solution

The fourth proportional to 3,893.82, 5,834.89 and 2,015.44 is: 3,020.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,893.82 : 5,834.89 = 2,015.44 : x
  2. Step 2: Convert to fraction form
    3,893.82/5,834.89 = 2,015.44/x
  3. Step 3: Cross multiply
    3,893.82x = 5,834.89 × 2,015.44
  4. Step 4: Simplify right side
    3,893.82x = 11,759,870.70
  5. Step 5: Solve for x
    x = 11,759,870.70/3,893.82
  6. Step 6: Final answer
    x = 3,020.14

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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.