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Finding the Fourth Proportional to 6,645.64, 9,968.46 and 2,745.76

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Solution

The fourth proportional to 6,645.64, 9,968.46 and 2,745.76 is: 4,118.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,645.64 : 9,968.46 = 2,745.76 : x
  2. Step 2: Convert to fraction form
    6,645.64/9,968.46 = 2,745.76/x
  3. Step 3: Cross multiply
    6,645.64x = 9,968.46 × 2,745.76
  4. Step 4: Simplify right side
    6,645.64x = 27,370,998.73
  5. Step 5: Solve for x
    x = 27,370,998.73/6,645.64
  6. Step 6: Final answer
    x = 4,118.64

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Similar ratio
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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.