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Finding the Fourth Proportional to 3,787.80, 5,683.11 and 1,707.18

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Solution

The fourth proportional to 3,787.80, 5,683.11 and 1,707.18 is: 2,561.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.80 : 5,683.11 = 1,707.18 : x
  2. Step 2: Convert to fraction form
    3,787.80/5,683.11 = 1,707.18/x
  3. Step 3: Cross multiply
    3,787.80x = 5,683.11 × 1,707.18
  4. Step 4: Simplify right side
    3,787.80x = 9,702,091.73
  5. Step 5: Solve for x
    x = 9,702,091.73/3,787.80
  6. Step 6: Final answer
    x = 2,561.41

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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.