Home / 3,949.68-5,450.55-2,271.41

Finding the Fourth Proportional to 3,949.68, 5,450.55 and 2,271.41

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Solution

The fourth proportional to 3,949.68, 5,450.55 and 2,271.41 is: 3,134.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.68 : 5,450.55 = 2,271.41 : x
  2. Step 2: Convert to fraction form
    3,949.68/5,450.55 = 2,271.41/x
  3. Step 3: Cross multiply
    3,949.68x = 5,450.55 × 2,271.41
  4. Step 4: Simplify right side
    3,949.68x = 12,380,414.47
  5. Step 5: Solve for x
    x = 12,380,414.47/3,949.68
  6. Step 6: Final answer
    x = 3,134.54

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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.