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Finding the Fourth Proportional to 6,992.05, 10,487.01 and 3,480.91

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Solution

The fourth proportional to 6,992.05, 10,487.01 and 3,480.91 is: 5,220.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,992.05 : 10,487.01 = 3,480.91 : x
  2. Step 2: Convert to fraction form
    6,992.05/10,487.01 = 3,480.91/x
  3. Step 3: Cross multiply
    6,992.05x = 10,487.01 × 3,480.91
  4. Step 4: Simplify right side
    6,992.05x = 36,504,337.98
  5. Step 5: Solve for x
    x = 36,504,337.98/6,992.05
  6. Step 6: Final answer
    x = 5,220.83

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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.