Home / 3,144.72-4,334.24-2,305.20

Finding the Fourth Proportional to 3,144.72, 4,334.24 and 2,305.20

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Solution

The fourth proportional to 3,144.72, 4,334.24 and 2,305.20 is: 3,177.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144.72 : 4,334.24 = 2,305.20 : x
  2. Step 2: Convert to fraction form
    3,144.72/4,334.24 = 2,305.20/x
  3. Step 3: Cross multiply
    3,144.72x = 4,334.24 × 2,305.20
  4. Step 4: Simplify right side
    3,144.72x = 9,991,290.05
  5. Step 5: Solve for x
    x = 9,991,290.05/3,144.72
  6. Step 6: Final answer
    x = 3,177.16

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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.