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Finding the Fourth Proportional to 1,958.22, 2,934.09 and 1,909.62

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Solution

The fourth proportional to 1,958.22, 2,934.09 and 1,909.62 is: 2,861.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958.22 : 2,934.09 = 1,909.62 : x
  2. Step 2: Convert to fraction form
    1,958.22/2,934.09 = 1,909.62/x
  3. Step 3: Cross multiply
    1,958.22x = 2,934.09 × 1,909.62
  4. Step 4: Simplify right side
    1,958.22x = 5,602,996.95
  5. Step 5: Solve for x
    x = 5,602,996.95/1,958.22
  6. Step 6: Final answer
    x = 2,861.27

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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.