Home / 3,950.15-5,451.17-2,181.74

Finding the Fourth Proportional to 3,950.15, 5,451.17 and 2,181.74

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Solution

The fourth proportional to 3,950.15, 5,451.17 and 2,181.74 is: 3,010.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950.15 : 5,451.17 = 2,181.74 : x
  2. Step 2: Convert to fraction form
    3,950.15/5,451.17 = 2,181.74/x
  3. Step 3: Cross multiply
    3,950.15x = 5,451.17 × 2,181.74
  4. Step 4: Simplify right side
    3,950.15x = 11,892,997.47
  5. Step 5: Solve for x
    x = 11,892,997.47/3,950.15
  6. Step 6: Final answer
    x = 3,010.77

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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.