Home / 7,601.72-11,403.99-2,921.54

Finding the Fourth Proportional to 7,601.72, 11,403.99 and 2,921.54

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Solution

The fourth proportional to 7,601.72, 11,403.99 and 2,921.54 is: 4,382.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,601.72 : 11,403.99 = 2,921.54 : x
  2. Step 2: Convert to fraction form
    7,601.72/11,403.99 = 2,921.54/x
  3. Step 3: Cross multiply
    7,601.72x = 11,403.99 × 2,921.54
  4. Step 4: Simplify right side
    7,601.72x = 33,317,155.92
  5. Step 5: Solve for x
    x = 33,317,155.92/7,601.72
  6. Step 6: Final answer
    x = 4,382.85

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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.