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Finding the Fourth Proportional to 6,181.87, 9,277.78 and 3,221.22

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Solution

The fourth proportional to 6,181.87, 9,277.78 and 3,221.22 is: 4,834.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,181.87 : 9,277.78 = 3,221.22 : x
  2. Step 2: Convert to fraction form
    6,181.87/9,277.78 = 3,221.22/x
  3. Step 3: Cross multiply
    6,181.87x = 9,277.78 × 3,221.22
  4. Step 4: Simplify right side
    6,181.87x = 29,885,724.10
  5. Step 5: Solve for x
    x = 29,885,724.10/6,181.87
  6. Step 6: Final answer
    x = 4,834.42

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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.