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Finding the Fourth Proportional to 7,879.03, 11,817.63 and 3,194.29

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Solution

The fourth proportional to 7,879.03, 11,817.63 and 3,194.29 is: 4,791.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879.03 : 11,817.63 = 3,194.29 : x
  2. Step 2: Convert to fraction form
    7,879.03/11,817.63 = 3,194.29/x
  3. Step 3: Cross multiply
    7,879.03x = 11,817.63 × 3,194.29
  4. Step 4: Simplify right side
    7,879.03x = 37,748,937.33
  5. Step 5: Solve for x
    x = 37,748,937.33/7,879.03
  6. Step 6: Final answer
    x = 4,791.06

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1.5x scale

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.