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Finding the Fourth Proportional to 6,612.62, 9,919.26 and 2,169.89

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Solution

The fourth proportional to 6,612.62, 9,919.26 and 2,169.89 is: 3,254.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612.62 : 9,919.26 = 2,169.89 : x
  2. Step 2: Convert to fraction form
    6,612.62/9,919.26 = 2,169.89/x
  3. Step 3: Cross multiply
    6,612.62x = 9,919.26 × 2,169.89
  4. Step 4: Simplify right side
    6,612.62x = 21,523,682.55
  5. Step 5: Solve for x
    x = 21,523,682.55/6,612.62
  6. Step 6: Final answer
    x = 3,254.94

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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.