Home / 1,790.38-2,469.46-1,553.86

Finding the Fourth Proportional to 1,790.38, 2,469.46 and 1,553.86

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Solution

The fourth proportional to 1,790.38, 2,469.46 and 1,553.86 is: 2,143.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.38 : 2,469.46 = 1,553.86 : x
  2. Step 2: Convert to fraction form
    1,790.38/2,469.46 = 1,553.86/x
  3. Step 3: Cross multiply
    1,790.38x = 2,469.46 × 1,553.86
  4. Step 4: Simplify right side
    1,790.38x = 3,837,175.00
  5. Step 5: Solve for x
    x = 3,837,175.00/1,790.38
  6. Step 6: Final answer
    x = 2,143.22

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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.