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Finding the Fourth Proportional to 6,173.85, 8,520.90 and 3,933.39

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Solution

The fourth proportional to 6,173.85, 8,520.90 and 3,933.39 is: 5,428.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,173.85 : 8,520.90 = 3,933.39 : x
  2. Step 2: Convert to fraction form
    6,173.85/8,520.90 = 3,933.39/x
  3. Step 3: Cross multiply
    6,173.85x = 8,520.90 × 3,933.39
  4. Step 4: Simplify right side
    6,173.85x = 33,516,022.85
  5. Step 5: Solve for x
    x = 33,516,022.85/6,173.85
  6. Step 6: Final answer
    x = 5,428.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.