Home / 3,660.40-5,490.55-1,469.09

Finding the Fourth Proportional to 3,660.40, 5,490.55 and 1,469.09

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Solution

The fourth proportional to 3,660.40, 5,490.55 and 1,469.09 is: 2,203.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,660.40 : 5,490.55 = 1,469.09 : x
  2. Step 2: Convert to fraction form
    3,660.40/5,490.55 = 1,469.09/x
  3. Step 3: Cross multiply
    3,660.40x = 5,490.55 × 1,469.09
  4. Step 4: Simplify right side
    3,660.40x = 8,066,084.65
  5. Step 5: Solve for x
    x = 8,066,084.65/3,660.40
  6. Step 6: Final answer
    x = 2,203.61

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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.