Home / 7,645.68-11,469.60-3,485.70

Finding the Fourth Proportional to 7,645.68, 11,469.60 and 3,485.70

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Solution

The fourth proportional to 7,645.68, 11,469.60 and 3,485.70 is: 5,229.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,645.68 : 11,469.60 = 3,485.70 : x
  2. Step 2: Convert to fraction form
    7,645.68/11,469.60 = 3,485.70/x
  3. Step 3: Cross multiply
    7,645.68x = 11,469.60 × 3,485.70
  4. Step 4: Simplify right side
    7,645.68x = 39,979,584.72
  5. Step 5: Solve for x
    x = 39,979,584.72/7,645.68
  6. Step 6: Final answer
    x = 5,229.04

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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.