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Finding the Fourth Proportional to 2,587.30, 3,880.97 and 738.41

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Solution

The fourth proportional to 2,587.30, 3,880.97 and 738.41 is: 1,107.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.30 : 3,880.97 = 738.41 : x
  2. Step 2: Convert to fraction form
    2,587.30/3,880.97 = 738.41/x
  3. Step 3: Cross multiply
    2,587.30x = 3,880.97 × 738.41
  4. Step 4: Simplify right side
    2,587.30x = 2,865,747.06
  5. Step 5: Solve for x
    x = 2,865,747.06/2,587.30
  6. Step 6: Final answer
    x = 1,107.62

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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.