Home / 1,462.20-2,192.85-422.30

Finding the Fourth Proportional to 1,462.20, 2,192.85 and 422.30

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Solution

The fourth proportional to 1,462.20, 2,192.85 and 422.30 is: 633.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,462.20 : 2,192.85 = 422.30 : x
  2. Step 2: Convert to fraction form
    1,462.20/2,192.85 = 422.30/x
  3. Step 3: Cross multiply
    1,462.20x = 2,192.85 × 422.30
  4. Step 4: Simplify right side
    1,462.20x = 926,029.59
  5. Step 5: Solve for x
    x = 926,029.59/1,462.20
  6. Step 6: Final answer
    x = 633.31

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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.