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Finding the Fourth Proportional to 7,755.54, 11,629.81 and 2,207.54

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Solution

The fourth proportional to 7,755.54, 11,629.81 and 2,207.54 is: 3,310.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,755.54 : 11,629.81 = 2,207.54 : x
  2. Step 2: Convert to fraction form
    7,755.54/11,629.81 = 2,207.54/x
  3. Step 3: Cross multiply
    7,755.54x = 11,629.81 × 2,207.54
  4. Step 4: Simplify right side
    7,755.54x = 25,673,302.60
  5. Step 5: Solve for x
    x = 25,673,302.60/7,755.54
  6. Step 6: Final answer
    x = 3,310.32

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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.