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Finding the Fourth Proportional to 3,745.82, 5,169.21 and 2,173.88

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Solution

The fourth proportional to 3,745.82, 5,169.21 and 2,173.88 is: 2,999.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.82 : 5,169.21 = 2,173.88 : x
  2. Step 2: Convert to fraction form
    3,745.82/5,169.21 = 2,173.88/x
  3. Step 3: Cross multiply
    3,745.82x = 5,169.21 × 2,173.88
  4. Step 4: Simplify right side
    3,745.82x = 11,237,242.23
  5. Step 5: Solve for x
    x = 11,237,242.23/3,745.82
  6. Step 6: Final answer
    x = 2,999.94

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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.