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Finding the Fourth Proportional to 3,243.57, 4,865.96 and 1,295.79

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Solution

The fourth proportional to 3,243.57, 4,865.96 and 1,295.79 is: 1,943.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243.57 : 4,865.96 = 1,295.79 : x
  2. Step 2: Convert to fraction form
    3,243.57/4,865.96 = 1,295.79/x
  3. Step 3: Cross multiply
    3,243.57x = 4,865.96 × 1,295.79
  4. Step 4: Simplify right side
    3,243.57x = 6,305,262.31
  5. Step 5: Solve for x
    x = 6,305,262.31/3,243.57
  6. Step 6: Final answer
    x = 1,943.93

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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.