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Finding the Fourth Proportional to 6,611.85, 9,918.02 and 2,229.35

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Solution

The fourth proportional to 6,611.85, 9,918.02 and 2,229.35 is: 3,344.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,611.85 : 9,918.02 = 2,229.35 : x
  2. Step 2: Convert to fraction form
    6,611.85/9,918.02 = 2,229.35/x
  3. Step 3: Cross multiply
    6,611.85x = 9,918.02 × 2,229.35
  4. Step 4: Simplify right side
    6,611.85x = 22,110,677.15
  5. Step 5: Solve for x
    x = 22,110,677.15/6,611.85
  6. Step 6: Final answer
    x = 3,344.10

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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.