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Finding the Fourth Proportional to 3,745.68, 5,168.76 and 2,173.44

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Solution

The fourth proportional to 3,745.68, 5,168.76 and 2,173.44 is: 2,999.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.68 : 5,168.76 = 2,173.44 : x
  2. Step 2: Convert to fraction form
    3,745.68/5,168.76 = 2,173.44/x
  3. Step 3: Cross multiply
    3,745.68x = 5,168.76 × 2,173.44
  4. Step 4: Simplify right side
    3,745.68x = 11,233,989.73
  5. Step 5: Solve for x
    x = 11,233,989.73/3,745.68
  6. Step 6: Final answer
    x = 2,999.19

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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.