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Finding the Fourth Proportional to 6,397.73, 8,828.95 and 3,745.39

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Solution

The fourth proportional to 6,397.73, 8,828.95 and 3,745.39 is: 5,168.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,397.73 : 8,828.95 = 3,745.39 : x
  2. Step 2: Convert to fraction form
    6,397.73/8,828.95 = 3,745.39/x
  3. Step 3: Cross multiply
    6,397.73x = 8,828.95 × 3,745.39
  4. Step 4: Simplify right side
    6,397.73x = 33,067,853.18
  5. Step 5: Solve for x
    x = 33,067,853.18/6,397.73
  6. Step 6: Final answer
    x = 5,168.68

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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.