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Finding the Fourth Proportional to 3,970.62, 5,956.07 and 1,892.16

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Solution

The fourth proportional to 3,970.62, 5,956.07 and 1,892.16 is: 2,838.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.62 : 5,956.07 = 1,892.16 : x
  2. Step 2: Convert to fraction form
    3,970.62/5,956.07 = 1,892.16/x
  3. Step 3: Cross multiply
    3,970.62x = 5,956.07 × 1,892.16
  4. Step 4: Simplify right side
    3,970.62x = 11,269,827.95
  5. Step 5: Solve for x
    x = 11,269,827.95/3,970.62
  6. Step 6: Final answer
    x = 2,838.30

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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.