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Finding the Fourth Proportional to 3,912.82, 5,867.10 and 1,802.16

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Solution

The fourth proportional to 3,912.82, 5,867.10 and 1,802.16 is: 2,702.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.82 : 5,867.10 = 1,802.16 : x
  2. Step 2: Convert to fraction form
    3,912.82/5,867.10 = 1,802.16/x
  3. Step 3: Cross multiply
    3,912.82x = 5,867.10 × 1,802.16
  4. Step 4: Simplify right side
    3,912.82x = 10,573,452.94
  5. Step 5: Solve for x
    x = 10,573,452.94/3,912.82
  6. Step 6: Final answer
    x = 2,702.26

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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.