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Finding the Fourth Proportional to 6,771.96, 10,158.21 and 2,091.55

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Solution

The fourth proportional to 6,771.96, 10,158.21 and 2,091.55 is: 3,137.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,771.96 : 10,158.21 = 2,091.55 : x
  2. Step 2: Convert to fraction form
    6,771.96/10,158.21 = 2,091.55/x
  3. Step 3: Cross multiply
    6,771.96x = 10,158.21 × 2,091.55
  4. Step 4: Simplify right side
    6,771.96x = 21,246,404.13
  5. Step 5: Solve for x
    x = 21,246,404.13/6,771.96
  6. Step 6: Final answer
    x = 3,137.41

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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.