Home / 7,629.24-11,439.90-3,930.60

Finding the Fourth Proportional to 7,629.24, 11,439.90 and 3,930.60

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Solution

The fourth proportional to 7,629.24, 11,439.90 and 3,930.60 is: 5,893.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,629.24 : 11,439.90 = 3,930.60 : x
  2. Step 2: Convert to fraction form
    7,629.24/11,439.90 = 3,930.60/x
  3. Step 3: Cross multiply
    7,629.24x = 11,439.90 × 3,930.60
  4. Step 4: Simplify right side
    7,629.24x = 44,965,670.94
  5. Step 5: Solve for x
    x = 44,965,670.94/7,629.24
  6. Step 6: Final answer
    x = 5,893.86

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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.