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Finding the Fourth Proportional to 3,971.88, 5,957.88 and 1,892.10

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Solution

The fourth proportional to 3,971.88, 5,957.88 and 1,892.10 is: 2,838.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.88 : 5,957.88 = 1,892.10 : x
  2. Step 2: Convert to fraction form
    3,971.88/5,957.88 = 1,892.10/x
  3. Step 3: Cross multiply
    3,971.88x = 5,957.88 × 1,892.10
  4. Step 4: Simplify right side
    3,971.88x = 11,272,904.75
  5. Step 5: Solve for x
    x = 11,272,904.75/3,971.88
  6. Step 6: Final answer
    x = 2,838.18

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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.