Home / 3,943.80-5,912.82-2,093.40

Finding the Fourth Proportional to 3,943.80, 5,912.82 and 2,093.40

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Solution

The fourth proportional to 3,943.80, 5,912.82 and 2,093.40 is: 3,138.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.80 : 5,912.82 = 2,093.40 : x
  2. Step 2: Convert to fraction form
    3,943.80/5,912.82 = 2,093.40/x
  3. Step 3: Cross multiply
    3,943.80x = 5,912.82 × 2,093.40
  4. Step 4: Simplify right side
    3,943.80x = 12,377,897.39
  5. Step 5: Solve for x
    x = 12,377,897.39/3,943.80
  6. Step 6: Final answer
    x = 3,138.57

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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.