Home / 3,951.30-5,450.38-2,356.91

Finding the Fourth Proportional to 3,951.30, 5,450.38 and 2,356.91

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Solution

The fourth proportional to 3,951.30, 5,450.38 and 2,356.91 is: 3,251.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.30 : 5,450.38 = 2,356.91 : x
  2. Step 2: Convert to fraction form
    3,951.30/5,450.38 = 2,356.91/x
  3. Step 3: Cross multiply
    3,951.30x = 5,450.38 × 2,356.91
  4. Step 4: Simplify right side
    3,951.30x = 12,846,055.13
  5. Step 5: Solve for x
    x = 12,846,055.13/3,951.30
  6. Step 6: Final answer
    x = 3,251.10

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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.