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Finding the Fourth Proportional to 3,959.73, 5,939.46 and 1,880.73

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Solution

The fourth proportional to 3,959.73, 5,939.46 and 1,880.73 is: 2,821.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.73 : 5,939.46 = 1,880.73 : x
  2. Step 2: Convert to fraction form
    3,959.73/5,939.46 = 1,880.73/x
  3. Step 3: Cross multiply
    3,959.73x = 5,939.46 × 1,880.73
  4. Step 4: Simplify right side
    3,959.73x = 11,170,520.61
  5. Step 5: Solve for x
    x = 11,170,520.61/3,959.73
  6. Step 6: Final answer
    x = 2,821.03

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1.5x scale

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.