Home / 2,786.10-4,195.43-2,060.78

Finding the Fourth Proportional to 2,786.10, 4,195.43 and 2,060.78

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Solution

The fourth proportional to 2,786.10, 4,195.43 and 2,060.78 is: 3,103.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.10 : 4,195.43 = 2,060.78 : x
  2. Step 2: Convert to fraction form
    2,786.10/4,195.43 = 2,060.78/x
  3. Step 3: Cross multiply
    2,786.10x = 4,195.43 × 2,060.78
  4. Step 4: Simplify right side
    2,786.10x = 8,645,858.24
  5. Step 5: Solve for x
    x = 8,645,858.24/2,786.10
  6. Step 6: Final answer
    x = 3,103.21

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.