Home / 3,142.92-4,338.06-1,963.28

Finding the Fourth Proportional to 3,142.92, 4,338.06 and 1,963.28

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Solution

The fourth proportional to 3,142.92, 4,338.06 and 1,963.28 is: 2,709.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.92 : 4,338.06 = 1,963.28 : x
  2. Step 2: Convert to fraction form
    3,142.92/4,338.06 = 1,963.28/x
  3. Step 3: Cross multiply
    3,142.92x = 4,338.06 × 1,963.28
  4. Step 4: Simplify right side
    3,142.92x = 8,516,826.44
  5. Step 5: Solve for x
    x = 8,516,826.44/3,142.92
  6. Step 6: Final answer
    x = 2,709.85

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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.