Home / 3,950.20-5,451.24-2,181.85

Finding the Fourth Proportional to 3,950.20, 5,451.24 and 2,181.85

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Solution

The fourth proportional to 3,950.20, 5,451.24 and 2,181.85 is: 3,010.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950.20 : 5,451.24 = 2,181.85 : x
  2. Step 2: Convert to fraction form
    3,950.20/5,451.24 = 2,181.85/x
  3. Step 3: Cross multiply
    3,950.20x = 5,451.24 × 2,181.85
  4. Step 4: Simplify right side
    3,950.20x = 11,893,787.99
  5. Step 5: Solve for x
    x = 11,893,787.99/3,950.20
  6. Step 6: Final answer
    x = 3,010.93

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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.