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Finding the Fourth Proportional to 6,600.85, 9,108.91 and 3,949.72

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Solution

The fourth proportional to 6,600.85, 9,108.91 and 3,949.72 is: 5,450.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,600.85 : 9,108.91 = 3,949.72 : x
  2. Step 2: Convert to fraction form
    6,600.85/9,108.91 = 3,949.72/x
  3. Step 3: Cross multiply
    6,600.85x = 9,108.91 × 3,949.72
  4. Step 4: Simplify right side
    6,600.85x = 35,977,692.99
  5. Step 5: Solve for x
    x = 35,977,692.99/6,600.85
  6. Step 6: Final answer
    x = 5,450.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.