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Finding the Fourth Proportional to 3,385.80, 5,078.52 and 1,193.94

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Solution

The fourth proportional to 3,385.80, 5,078.52 and 1,193.94 is: 1,790.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.80 : 5,078.52 = 1,193.94 : x
  2. Step 2: Convert to fraction form
    3,385.80/5,078.52 = 1,193.94/x
  3. Step 3: Cross multiply
    3,385.80x = 5,078.52 × 1,193.94
  4. Step 4: Simplify right side
    3,385.80x = 6,063,448.17
  5. Step 5: Solve for x
    x = 6,063,448.17/3,385.80
  6. Step 6: Final answer
    x = 1,790.85

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.