Home / 3,699.57-5,105.25-2,020.95

Finding the Fourth Proportional to 3,699.57, 5,105.25 and 2,020.95

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Solution

The fourth proportional to 3,699.57, 5,105.25 and 2,020.95 is: 2,788.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,699.57 : 5,105.25 = 2,020.95 : x
  2. Step 2: Convert to fraction form
    3,699.57/5,105.25 = 2,020.95/x
  3. Step 3: Cross multiply
    3,699.57x = 5,105.25 × 2,020.95
  4. Step 4: Simplify right side
    3,699.57x = 10,317,454.99
  5. Step 5: Solve for x
    x = 10,317,454.99/3,699.57
  6. Step 6: Final answer
    x = 2,788.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.