Home / 2,201.66-3,298.21-1,224.80

Finding the Fourth Proportional to 2,201.66, 3,298.21 and 1,224.80

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Solution

The fourth proportional to 2,201.66, 3,298.21 and 1,224.80 is: 1,834.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.66 : 3,298.21 = 1,224.80 : x
  2. Step 2: Convert to fraction form
    2,201.66/3,298.21 = 1,224.80/x
  3. Step 3: Cross multiply
    2,201.66x = 3,298.21 × 1,224.80
  4. Step 4: Simplify right side
    2,201.66x = 4,039,647.61
  5. Step 5: Solve for x
    x = 4,039,647.61/2,201.66
  6. Step 6: Final answer
    x = 1,834.82

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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.