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Finding the Fourth Proportional to 6,788.39, 9,368.37 and 3,805.20

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Solution

The fourth proportional to 6,788.39, 9,368.37 and 3,805.20 is: 5,251.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,788.39 : 9,368.37 = 3,805.20 : x
  2. Step 2: Convert to fraction form
    6,788.39/9,368.37 = 3,805.20/x
  3. Step 3: Cross multiply
    6,788.39x = 9,368.37 × 3,805.20
  4. Step 4: Simplify right side
    6,788.39x = 35,648,521.52
  5. Step 5: Solve for x
    x = 35,648,521.52/6,788.39
  6. Step 6: Final answer
    x = 5,251.39

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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.