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Finding the Fourth Proportional to 6,608.75, 9,911.99 and 2,166.32

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Solution

The fourth proportional to 6,608.75, 9,911.99 and 2,166.32 is: 3,249.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,608.75 : 9,911.99 = 2,166.32 : x
  2. Step 2: Convert to fraction form
    6,608.75/9,911.99 = 2,166.32/x
  3. Step 3: Cross multiply
    6,608.75x = 9,911.99 × 2,166.32
  4. Step 4: Simplify right side
    6,608.75x = 21,472,572.37
  5. Step 5: Solve for x
    x = 21,472,572.37/6,608.75
  6. Step 6: Final answer
    x = 3,249.11

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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.