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Finding the Fourth Proportional to 3,691, 5,093.60 and 2,035

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Solution

The fourth proportional to 3,691, 5,093.60 and 2,035 is: 2,808.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,691 : 5,093.60 = 2,035 : x
  2. Step 2: Convert to fraction form
    3,691/5,093.60 = 2,035/x
  3. Step 3: Cross multiply
    3,691x = 5,093.60 × 2,035
  4. Step 4: Simplify right side
    3,691x = 10,365,476
  5. Step 5: Solve for x
    x = 10,365,476/3,691
  6. Step 6: Final answer
    x = 2,808.31

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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.