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Finding the Fourth Proportional to 6,640.29, 9,162.29 and 3,808.58

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Solution

The fourth proportional to 6,640.29, 9,162.29 and 3,808.58 is: 5,255.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640.29 : 9,162.29 = 3,808.58 : x
  2. Step 2: Convert to fraction form
    6,640.29/9,162.29 = 3,808.58/x
  3. Step 3: Cross multiply
    6,640.29x = 9,162.29 × 3,808.58
  4. Step 4: Simplify right side
    6,640.29x = 34,895,249.59
  5. Step 5: Solve for x
    x = 34,895,249.59/6,640.29
  6. Step 6: Final answer
    x = 5,255.08

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