Home / 2,072.10-3,108.15-611.22

Finding the Fourth Proportional to 2,072.10, 3,108.15 and 611.22

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Solution

The fourth proportional to 2,072.10, 3,108.15 and 611.22 is: 916.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072.10 : 3,108.15 = 611.22 : x
  2. Step 2: Convert to fraction form
    2,072.10/3,108.15 = 611.22/x
  3. Step 3: Cross multiply
    2,072.10x = 3,108.15 × 611.22
  4. Step 4: Simplify right side
    2,072.10x = 1,899,763.44
  5. Step 5: Solve for x
    x = 1,899,763.44/2,072.10
  6. Step 6: Final answer
    x = 916.83

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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.