Home / 2,219.19-3,321.87-1,634.85

Finding the Fourth Proportional to 2,219.19, 3,321.87 and 1,634.85

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Solution

The fourth proportional to 2,219.19, 3,321.87 and 1,634.85 is: 2,447.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.19 : 3,321.87 = 1,634.85 : x
  2. Step 2: Convert to fraction form
    2,219.19/3,321.87 = 1,634.85/x
  3. Step 3: Cross multiply
    2,219.19x = 3,321.87 × 1,634.85
  4. Step 4: Simplify right side
    2,219.19x = 5,430,751.00
  5. Step 5: Solve for x
    x = 5,430,751.00/2,219.19
  6. Step 6: Final answer
    x = 2,447.18

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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.