Home / 4,120.62-6,181.17-1,811.82

Finding the Fourth Proportional to 4,120.62, 6,181.17 and 1,811.82

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Solution

The fourth proportional to 4,120.62, 6,181.17 and 1,811.82 is: 2,717.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.62 : 6,181.17 = 1,811.82 : x
  2. Step 2: Convert to fraction form
    4,120.62/6,181.17 = 1,811.82/x
  3. Step 3: Cross multiply
    4,120.62x = 6,181.17 × 1,811.82
  4. Step 4: Simplify right side
    4,120.62x = 11,199,167.43
  5. Step 5: Solve for x
    x = 11,199,167.43/4,120.62
  6. Step 6: Final answer
    x = 2,717.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.