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Finding the Fourth Proportional to 3,190.67, 4,787.62 and 1,651.67

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Solution

The fourth proportional to 3,190.67, 4,787.62 and 1,651.67 is: 2,478.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.67 : 4,787.62 = 1,651.67 : x
  2. Step 2: Convert to fraction form
    3,190.67/4,787.62 = 1,651.67/x
  3. Step 3: Cross multiply
    3,190.67x = 4,787.62 × 1,651.67
  4. Step 4: Simplify right side
    3,190.67x = 7,907,568.33
  5. Step 5: Solve for x
    x = 7,907,568.33/3,190.67
  6. Step 6: Final answer
    x = 2,478.34

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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.