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Finding the Fourth Proportional to 3,959.92, 5,940.49 and 1,362.25

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Solution

The fourth proportional to 3,959.92, 5,940.49 and 1,362.25 is: 2,043.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.92 : 5,940.49 = 1,362.25 : x
  2. Step 2: Convert to fraction form
    3,959.92/5,940.49 = 1,362.25/x
  3. Step 3: Cross multiply
    3,959.92x = 5,940.49 × 1,362.25
  4. Step 4: Simplify right side
    3,959.92x = 8,092,432.50
  5. Step 5: Solve for x
    x = 8,092,432.50/3,959.92
  6. Step 6: Final answer
    x = 2,043.58

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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.