Home / 3,950.28-5,451.09-2,181.84

Finding the Fourth Proportional to 3,950.28, 5,451.09 and 2,181.84

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Solution

The fourth proportional to 3,950.28, 5,451.09 and 2,181.84 is: 3,010.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950.28 : 5,451.09 = 2,181.84 : x
  2. Step 2: Convert to fraction form
    3,950.28/5,451.09 = 2,181.84/x
  3. Step 3: Cross multiply
    3,950.28x = 5,451.09 × 2,181.84
  4. Step 4: Simplify right side
    3,950.28x = 11,893,406.21
  5. Step 5: Solve for x
    x = 11,893,406.21/3,950.28
  6. Step 6: Final answer
    x = 3,010.78

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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.