Home / 3,950.10-5,451.16-2,181.72

Finding the Fourth Proportional to 3,950.10, 5,451.16 and 2,181.72

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Solution

The fourth proportional to 3,950.10, 5,451.16 and 2,181.72 is: 3,010.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950.10 : 5,451.16 = 2,181.72 : x
  2. Step 2: Convert to fraction form
    3,950.10/5,451.16 = 2,181.72/x
  3. Step 3: Cross multiply
    3,950.10x = 5,451.16 × 2,181.72
  4. Step 4: Simplify right side
    3,950.10x = 11,892,904.80
  5. Step 5: Solve for x
    x = 11,892,904.80/3,950.10
  6. Step 6: Final answer
    x = 3,010.79

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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.