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Finding the Fourth Proportional to 3,383.92, 4,669.80 and 1,891.80

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Solution

The fourth proportional to 3,383.92, 4,669.80 and 1,891.80 is: 2,610.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,383.92 : 4,669.80 = 1,891.80 : x
  2. Step 2: Convert to fraction form
    3,383.92/4,669.80 = 1,891.80/x
  3. Step 3: Cross multiply
    3,383.92x = 4,669.80 × 1,891.80
  4. Step 4: Simplify right side
    3,383.92x = 8,834,327.64
  5. Step 5: Solve for x
    x = 8,834,327.64/3,383.92
  6. Step 6: Final answer
    x = 2,610.68

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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.