Home / 3,814.38-5,721.78-1,622.88

Finding the Fourth Proportional to 3,814.38, 5,721.78 and 1,622.88

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Solution

The fourth proportional to 3,814.38, 5,721.78 and 1,622.88 is: 2,434.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,814.38 : 5,721.78 = 1,622.88 : x
  2. Step 2: Convert to fraction form
    3,814.38/5,721.78 = 1,622.88/x
  3. Step 3: Cross multiply
    3,814.38x = 5,721.78 × 1,622.88
  4. Step 4: Simplify right side
    3,814.38x = 9,285,762.33
  5. Step 5: Solve for x
    x = 9,285,762.33/3,814.38
  6. Step 6: Final answer
    x = 2,434.41

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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.