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Finding the Fourth Proportional to 3,243.56, 4,865.04 and 1,394.34

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Solution

The fourth proportional to 3,243.56, 4,865.04 and 1,394.34 is: 2,091.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243.56 : 4,865.04 = 1,394.34 : x
  2. Step 2: Convert to fraction form
    3,243.56/4,865.04 = 1,394.34/x
  3. Step 3: Cross multiply
    3,243.56x = 4,865.04 × 1,394.34
  4. Step 4: Simplify right side
    3,243.56x = 6,783,519.87
  5. Step 5: Solve for x
    x = 6,783,519.87/3,243.56
  6. Step 6: Final answer
    x = 2,091.38

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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.