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Finding the Fourth Proportional to 6,661.11, 9,984.45 and 3,286.25

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Solution

The fourth proportional to 6,661.11, 9,984.45 and 3,286.25 is: 4,925.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,661.11 : 9,984.45 = 3,286.25 : x
  2. Step 2: Convert to fraction form
    6,661.11/9,984.45 = 3,286.25/x
  3. Step 3: Cross multiply
    6,661.11x = 9,984.45 × 3,286.25
  4. Step 4: Simplify right side
    6,661.11x = 32,811,348.89
  5. Step 5: Solve for x
    x = 32,811,348.89/6,661.11
  6. Step 6: Final answer
    x = 4,925.81

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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.