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Finding the Fourth Proportional to 6,680.80, 10,021.20 and 2,520.94

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Solution

The fourth proportional to 6,680.80, 10,021.20 and 2,520.94 is: 3,781.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,680.80 : 10,021.20 = 2,520.94 : x
  2. Step 2: Convert to fraction form
    6,680.80/10,021.20 = 2,520.94/x
  3. Step 3: Cross multiply
    6,680.80x = 10,021.20 × 2,520.94
  4. Step 4: Simplify right side
    6,680.80x = 25,262,843.93
  5. Step 5: Solve for x
    x = 25,262,843.93/6,680.80
  6. Step 6: Final answer
    x = 3,781.41

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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.