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Finding the Fourth Proportional to 6,768.06, 9,339.88 and 3,783.88

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Solution

The fourth proportional to 6,768.06, 9,339.88 and 3,783.88 is: 5,221.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,768.06 : 9,339.88 = 3,783.88 : x
  2. Step 2: Convert to fraction form
    6,768.06/9,339.88 = 3,783.88/x
  3. Step 3: Cross multiply
    6,768.06x = 9,339.88 × 3,783.88
  4. Step 4: Simplify right side
    6,768.06x = 35,340,985.13
  5. Step 5: Solve for x
    x = 35,340,985.13/6,768.06
  6. Step 6: Final answer
    x = 5,221.73

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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.