Home / 1,515.26-2,092.11-1,166.78

Finding the Fourth Proportional to 1,515.26, 2,092.11 and 1,166.78

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Solution

The fourth proportional to 1,515.26, 2,092.11 and 1,166.78 is: 1,610.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.26 : 2,092.11 = 1,166.78 : x
  2. Step 2: Convert to fraction form
    1,515.26/2,092.11 = 1,166.78/x
  3. Step 3: Cross multiply
    1,515.26x = 2,092.11 × 1,166.78
  4. Step 4: Simplify right side
    1,515.26x = 2,441,032.11
  5. Step 5: Solve for x
    x = 2,441,032.11/1,515.26
  6. Step 6: Final answer
    x = 1,610.97

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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.