Home / 6,609.75-9,120.62-3,624.80

Finding the Fourth Proportional to 6,609.75, 9,120.62 and 3,624.80

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Solution

The fourth proportional to 6,609.75, 9,120.62 and 3,624.80 is: 5,001.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,609.75 : 9,120.62 = 3,624.80 : x
  2. Step 2: Convert to fraction form
    6,609.75/9,120.62 = 3,624.80/x
  3. Step 3: Cross multiply
    6,609.75x = 9,120.62 × 3,624.80
  4. Step 4: Simplify right side
    6,609.75x = 33,060,359.65
  5. Step 5: Solve for x
    x = 33,060,359.65/6,609.75
  6. Step 6: Final answer
    x = 5,001.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.