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Finding the Fourth Proportional to 6,645.45, 9,968.54 and 2,486.55

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Solution

The fourth proportional to 6,645.45, 9,968.54 and 2,486.55 is: 3,729.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,645.45 : 9,968.54 = 2,486.55 : x
  2. Step 2: Convert to fraction form
    6,645.45/9,968.54 = 2,486.55/x
  3. Step 3: Cross multiply
    6,645.45x = 9,968.54 × 2,486.55
  4. Step 4: Simplify right side
    6,645.45x = 24,787,260.70
  5. Step 5: Solve for x
    x = 24,787,260.70/6,645.45
  6. Step 6: Final answer
    x = 3,729.96

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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.