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Finding the Fourth Proportional to 3,959.40, 5,937.70 and 1,361.73

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Solution

The fourth proportional to 3,959.40, 5,937.70 and 1,361.73 is: 2,042.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.40 : 5,937.70 = 1,361.73 : x
  2. Step 2: Convert to fraction form
    3,959.40/5,937.70 = 1,361.73/x
  3. Step 3: Cross multiply
    3,959.40x = 5,937.70 × 1,361.73
  4. Step 4: Simplify right side
    3,959.40x = 8,085,544.22
  5. Step 5: Solve for x
    x = 8,085,544.22/3,959.40
  6. Step 6: Final answer
    x = 2,042.11

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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.