Home / 2,786.28-4,181.24-2,057.68

Finding the Fourth Proportional to 2,786.28, 4,181.24 and 2,057.68

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Solution

The fourth proportional to 2,786.28, 4,181.24 and 2,057.68 is: 3,087.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.28 : 4,181.24 = 2,057.68 : x
  2. Step 2: Convert to fraction form
    2,786.28/4,181.24 = 2,057.68/x
  3. Step 3: Cross multiply
    2,786.28x = 4,181.24 × 2,057.68
  4. Step 4: Simplify right side
    2,786.28x = 8,603,653.92
  5. Step 5: Solve for x
    x = 8,603,653.92/2,786.28
  6. Step 6: Final answer
    x = 3,087.86

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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.