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Finding the Fourth Proportional to 6,601.66, 9,906.21 and 2,708.80

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Solution

The fourth proportional to 6,601.66, 9,906.21 and 2,708.80 is: 4,064.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,601.66 : 9,906.21 = 2,708.80 : x
  2. Step 2: Convert to fraction form
    6,601.66/9,906.21 = 2,708.80/x
  3. Step 3: Cross multiply
    6,601.66x = 9,906.21 × 2,708.80
  4. Step 4: Simplify right side
    6,601.66x = 26,833,941.65
  5. Step 5: Solve for x
    x = 26,833,941.65/6,601.66
  6. Step 6: Final answer
    x = 4,064.73

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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.