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Finding the Fourth Proportional to 2,610.56, 3,910.44 and 2,091.44

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Solution

The fourth proportional to 2,610.56, 3,910.44 and 2,091.44 is: 3,132.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,610.56 : 3,910.44 = 2,091.44 : x
  2. Step 2: Convert to fraction form
    2,610.56/3,910.44 = 2,091.44/x
  3. Step 3: Cross multiply
    2,610.56x = 3,910.44 × 2,091.44
  4. Step 4: Simplify right side
    2,610.56x = 8,178,450.63
  5. Step 5: Solve for x
    x = 8,178,450.63/2,610.56
  6. Step 6: Final answer
    x = 3,132.83

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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.