Home / 1,229.80-1,844.94-397.09

Finding the Fourth Proportional to 1,229.80, 1,844.94 and 397.09

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Solution

The fourth proportional to 1,229.80, 1,844.94 and 397.09 is: 595.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229.80 : 1,844.94 = 397.09 : x
  2. Step 2: Convert to fraction form
    1,229.80/1,844.94 = 397.09/x
  3. Step 3: Cross multiply
    1,229.80x = 1,844.94 × 397.09
  4. Step 4: Simplify right side
    1,229.80x = 732,603.10
  5. Step 5: Solve for x
    x = 732,603.10/1,229.80
  6. Step 6: Final answer
    x = 595.71

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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.