Home / 3,431.41-5,147.87-1,092.13

Finding the Fourth Proportional to 3,431.41, 5,147.87 and 1,092.13

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Solution

The fourth proportional to 3,431.41, 5,147.87 and 1,092.13 is: 1,638.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.41 : 5,147.87 = 1,092.13 : x
  2. Step 2: Convert to fraction form
    3,431.41/5,147.87 = 1,092.13/x
  3. Step 3: Cross multiply
    3,431.41x = 5,147.87 × 1,092.13
  4. Step 4: Simplify right side
    3,431.41x = 5,622,143.26
  5. Step 5: Solve for x
    x = 5,622,143.26/3,431.41
  6. Step 6: Final answer
    x = 1,638.44

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1.5x scale

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.