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Finding the Fourth Proportional to 3,789.73, 5,684.75 and 1,940.35

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Solution

The fourth proportional to 3,789.73, 5,684.75 and 1,940.35 is: 2,910.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.73 : 5,684.75 = 1,940.35 : x
  2. Step 2: Convert to fraction form
    3,789.73/5,684.75 = 1,940.35/x
  3. Step 3: Cross multiply
    3,789.73x = 5,684.75 × 1,940.35
  4. Step 4: Simplify right side
    3,789.73x = 11,030,394.96
  5. Step 5: Solve for x
    x = 11,030,394.96/3,789.73
  6. Step 6: Final answer
    x = 2,910.60

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1.5x scale

Why These Related Problems?

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