Home / 1,269.85-1,745.66-1,092.16

Finding the Fourth Proportional to 1,269.85, 1,745.66 and 1,092.16

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Solution

The fourth proportional to 1,269.85, 1,745.66 and 1,092.16 is: 1,501.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269.85 : 1,745.66 = 1,092.16 : x
  2. Step 2: Convert to fraction form
    1,269.85/1,745.66 = 1,092.16/x
  3. Step 3: Cross multiply
    1,269.85x = 1,745.66 × 1,092.16
  4. Step 4: Simplify right side
    1,269.85x = 1,906,540.03
  5. Step 5: Solve for x
    x = 1,906,540.03/1,269.85
  6. Step 6: Final answer
    x = 1,501.39

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.