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Finding the Fourth Proportional to 3,902.57, 5,845.02 and 3,018.86

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Solution

The fourth proportional to 3,902.57, 5,845.02 and 3,018.86 is: 4,521.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.57 : 5,845.02 = 3,018.86 : x
  2. Step 2: Convert to fraction form
    3,902.57/5,845.02 = 3,018.86/x
  3. Step 3: Cross multiply
    3,902.57x = 5,845.02 × 3,018.86
  4. Step 4: Simplify right side
    3,902.57x = 17,645,297.08
  5. Step 5: Solve for x
    x = 17,645,297.08/3,902.57
  6. Step 6: Final answer
    x = 4,521.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.