Home / 2,774.80-3,829.31-1,515.97

Finding the Fourth Proportional to 2,774.80, 3,829.31 and 1,515.97

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Solution

The fourth proportional to 2,774.80, 3,829.31 and 1,515.97 is: 2,092.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774.80 : 3,829.31 = 1,515.97 : x
  2. Step 2: Convert to fraction form
    2,774.80/3,829.31 = 1,515.97/x
  3. Step 3: Cross multiply
    2,774.80x = 3,829.31 × 1,515.97
  4. Step 4: Simplify right side
    2,774.80x = 5,805,121.97
  5. Step 5: Solve for x
    x = 5,805,121.97/2,774.80
  6. Step 6: Final answer
    x = 2,092.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.