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Finding the Fourth Proportional to 6,780.78, 9,357.02 and 3,796.59

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Solution

The fourth proportional to 6,780.78, 9,357.02 and 3,796.59 is: 5,239.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,780.78 : 9,357.02 = 3,796.59 : x
  2. Step 2: Convert to fraction form
    6,780.78/9,357.02 = 3,796.59/x
  3. Step 3: Cross multiply
    6,780.78x = 9,357.02 × 3,796.59
  4. Step 4: Simplify right side
    6,780.78x = 35,524,749.58
  5. Step 5: Solve for x
    x = 35,524,749.58/6,780.78
  6. Step 6: Final answer
    x = 5,239.04

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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.