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Finding the Fourth Proportional to 6,655.25, 9,982.88 and 2,759.78

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Solution

The fourth proportional to 6,655.25, 9,982.88 and 2,759.78 is: 4,139.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,655.25 : 9,982.88 = 2,759.78 : x
  2. Step 2: Convert to fraction form
    6,655.25/9,982.88 = 2,759.78/x
  3. Step 3: Cross multiply
    6,655.25x = 9,982.88 × 2,759.78
  4. Step 4: Simplify right side
    6,655.25x = 27,550,552.57
  5. Step 5: Solve for x
    x = 27,550,552.57/6,655.25
  6. Step 6: Final answer
    x = 4,139.67

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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.