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Finding the Fourth Proportional to 6,786.21, 9,364.68 and 3,801.54

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Solution

The fourth proportional to 6,786.21, 9,364.68 and 3,801.54 is: 5,245.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,786.21 : 9,364.68 = 3,801.54 : x
  2. Step 2: Convert to fraction form
    6,786.21/9,364.68 = 3,801.54/x
  3. Step 3: Cross multiply
    6,786.21x = 9,364.68 × 3,801.54
  4. Step 4: Simplify right side
    6,786.21x = 35,600,205.61
  5. Step 5: Solve for x
    x = 35,600,205.61/6,786.21
  6. Step 6: Final answer
    x = 5,245.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.