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Finding the Fourth Proportional to 6,620.22, 9,930.11 and 3,108.26

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Solution

The fourth proportional to 6,620.22, 9,930.11 and 3,108.26 is: 4,662.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.22 : 9,930.11 = 3,108.26 : x
  2. Step 2: Convert to fraction form
    6,620.22/9,930.11 = 3,108.26/x
  3. Step 3: Cross multiply
    6,620.22x = 9,930.11 × 3,108.26
  4. Step 4: Simplify right side
    6,620.22x = 30,865,372.99
  5. Step 5: Solve for x
    x = 30,865,372.99/6,620.22
  6. Step 6: Final answer
    x = 4,662.29

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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.