Home / 3,943.56-5,442.49-2,947.11

Finding the Fourth Proportional to 3,943.56, 5,442.49 and 2,947.11

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Solution

The fourth proportional to 3,943.56, 5,442.49 and 2,947.11 is: 4,067.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.56 : 5,442.49 = 2,947.11 : x
  2. Step 2: Convert to fraction form
    3,943.56/5,442.49 = 2,947.11/x
  3. Step 3: Cross multiply
    3,943.56x = 5,442.49 × 2,947.11
  4. Step 4: Simplify right side
    3,943.56x = 16,039,599.98
  5. Step 5: Solve for x
    x = 16,039,599.98/3,943.56
  6. Step 6: Final answer
    x = 4,067.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.