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Finding the Fourth Proportional to 3,975.62, 5,967.48 and 2,126.66

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Solution

The fourth proportional to 3,975.62, 5,967.48 and 2,126.66 is: 3,192.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.62 : 5,967.48 = 2,126.66 : x
  2. Step 2: Convert to fraction form
    3,975.62/5,967.48 = 2,126.66/x
  3. Step 3: Cross multiply
    3,975.62x = 5,967.48 × 2,126.66
  4. Step 4: Simplify right side
    3,975.62x = 12,690,801.02
  5. Step 5: Solve for x
    x = 12,690,801.02/3,975.62
  6. Step 6: Final answer
    x = 3,192.16

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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.