Home / 3,960.20-5,930.58-2,787.32

Finding the Fourth Proportional to 3,960.20, 5,930.58 and 2,787.32

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Solution

The fourth proportional to 3,960.20, 5,930.58 and 2,787.32 is: 4,174.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.20 : 5,930.58 = 2,787.32 : x
  2. Step 2: Convert to fraction form
    3,960.20/5,930.58 = 2,787.32/x
  3. Step 3: Cross multiply
    3,960.20x = 5,930.58 × 2,787.32
  4. Step 4: Simplify right side
    3,960.20x = 16,530,424.25
  5. Step 5: Solve for x
    x = 16,530,424.25/3,960.20
  6. Step 6: Final answer
    x = 4,174.14

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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.