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Finding the Fourth Proportional to 6,610.66, 9,912.12 and 2,661.76

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Solution

The fourth proportional to 6,610.66, 9,912.12 and 2,661.76 is: 3,991.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,610.66 : 9,912.12 = 2,661.76 : x
  2. Step 2: Convert to fraction form
    6,610.66/9,912.12 = 2,661.76/x
  3. Step 3: Cross multiply
    6,610.66x = 9,912.12 × 2,661.76
  4. Step 4: Simplify right side
    6,610.66x = 26,383,701.91
  5. Step 5: Solve for x
    x = 26,383,701.91/6,610.66
  6. Step 6: Final answer
    x = 3,991.08

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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.