Home / 2,072.25-3,107.97-611.15

Finding the Fourth Proportional to 2,072.25, 3,107.97 and 611.15

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Solution

The fourth proportional to 2,072.25, 3,107.97 and 611.15 is: 916.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072.25 : 3,107.97 = 611.15 : x
  2. Step 2: Convert to fraction form
    2,072.25/3,107.97 = 611.15/x
  3. Step 3: Cross multiply
    2,072.25x = 3,107.97 × 611.15
  4. Step 4: Simplify right side
    2,072.25x = 1,899,420.33
  5. Step 5: Solve for x
    x = 1,899,420.33/2,072.25
  6. Step 6: Final answer
    x = 916.60

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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.