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Finding the Fourth Proportional to 6,755.56, 10,134.90 and 2,138.56

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Solution

The fourth proportional to 6,755.56, 10,134.90 and 2,138.56 is: 3,208.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,755.56 : 10,134.90 = 2,138.56 : x
  2. Step 2: Convert to fraction form
    6,755.56/10,134.90 = 2,138.56/x
  3. Step 3: Cross multiply
    6,755.56x = 10,134.90 × 2,138.56
  4. Step 4: Simplify right side
    6,755.56x = 21,674,091.74
  5. Step 5: Solve for x
    x = 21,674,091.74/6,755.56
  6. Step 6: Final answer
    x = 3,208.33

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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.