Home / 3,747.38-5,170.41-2,255.00

Finding the Fourth Proportional to 3,747.38, 5,170.41 and 2,255.00

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Solution

The fourth proportional to 3,747.38, 5,170.41 and 2,255.00 is: 3,111.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.38 : 5,170.41 = 2,255.00 : x
  2. Step 2: Convert to fraction form
    3,747.38/5,170.41 = 2,255.00/x
  3. Step 3: Cross multiply
    3,747.38x = 5,170.41 × 2,255.00
  4. Step 4: Simplify right side
    3,747.38x = 11,659,248.70
  5. Step 5: Solve for x
    x = 11,659,248.70/3,747.38
  6. Step 6: Final answer
    x = 3,111.31

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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.