Home / 1,396.30-2,094.83-422.44

Finding the Fourth Proportional to 1,396.30, 2,094.83 and 422.44

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Solution

The fourth proportional to 1,396.30, 2,094.83 and 422.44 is: 633.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396.30 : 2,094.83 = 422.44 : x
  2. Step 2: Convert to fraction form
    1,396.30/2,094.83 = 422.44/x
  3. Step 3: Cross multiply
    1,396.30x = 2,094.83 × 422.44
  4. Step 4: Simplify right side
    1,396.30x = 884,939.99
  5. Step 5: Solve for x
    x = 884,939.99/1,396.30
  6. Step 6: Final answer
    x = 633.77

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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.