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Finding the Fourth Proportional to 7,171.22, 10,755.22 and 3,015.92

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Solution

The fourth proportional to 7,171.22, 10,755.22 and 3,015.92 is: 4,523.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171.22 : 10,755.22 = 3,015.92 : x
  2. Step 2: Convert to fraction form
    7,171.22/10,755.22 = 3,015.92/x
  3. Step 3: Cross multiply
    7,171.22x = 10,755.22 × 3,015.92
  4. Step 4: Simplify right side
    7,171.22x = 32,436,883.10
  5. Step 5: Solve for x
    x = 32,436,883.10/7,171.22
  6. Step 6: Final answer
    x = 4,523.20

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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.