Home / 1,486.26-2,229.30-620.58

Finding the Fourth Proportional to 1,486.26, 2,229.30 and 620.58

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Solution

The fourth proportional to 1,486.26, 2,229.30 and 620.58 is: 930.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486.26 : 2,229.30 = 620.58 : x
  2. Step 2: Convert to fraction form
    1,486.26/2,229.30 = 620.58/x
  3. Step 3: Cross multiply
    1,486.26x = 2,229.30 × 620.58
  4. Step 4: Simplify right side
    1,486.26x = 1,383,458.99
  5. Step 5: Solve for x
    x = 1,383,458.99/1,486.26
  6. Step 6: Final answer
    x = 930.83

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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.