Home / 3,181.26-4,391.34-2,133.92

Finding the Fourth Proportional to 3,181.26, 4,391.34 and 2,133.92

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Solution

The fourth proportional to 3,181.26, 4,391.34 and 2,133.92 is: 2,945.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.26 : 4,391.34 = 2,133.92 : x
  2. Step 2: Convert to fraction form
    3,181.26/4,391.34 = 2,133.92/x
  3. Step 3: Cross multiply
    3,181.26x = 4,391.34 × 2,133.92
  4. Step 4: Simplify right side
    3,181.26x = 9,370,768.25
  5. Step 5: Solve for x
    x = 9,370,768.25/3,181.26
  6. Step 6: Final answer
    x = 2,945.62

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1.5x scale

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.