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Finding the Fourth Proportional to 6,605.42, 9,908.19 and 2,163.03

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Solution

The fourth proportional to 6,605.42, 9,908.19 and 2,163.03 is: 3,244.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,605.42 : 9,908.19 = 2,163.03 : x
  2. Step 2: Convert to fraction form
    6,605.42/9,908.19 = 2,163.03/x
  3. Step 3: Cross multiply
    6,605.42x = 9,908.19 × 2,163.03
  4. Step 4: Simplify right side
    6,605.42x = 21,431,712.22
  5. Step 5: Solve for x
    x = 21,431,712.22/6,605.42
  6. Step 6: Final answer
    x = 3,244.57

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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.