Home / 1,363.26-2,045.25-389.44

Finding the Fourth Proportional to 1,363.26, 2,045.25 and 389.44

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Solution

The fourth proportional to 1,363.26, 2,045.25 and 389.44 is: 584.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,363.26 : 2,045.25 = 389.44 : x
  2. Step 2: Convert to fraction form
    1,363.26/2,045.25 = 389.44/x
  3. Step 3: Cross multiply
    1,363.26x = 2,045.25 × 389.44
  4. Step 4: Simplify right side
    1,363.26x = 796,504.72
  5. Step 5: Solve for x
    x = 796,504.72/1,363.26
  6. Step 6: Final answer
    x = 584.26

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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.