Home / 2,217.48-3,326.20-919.04

Finding the Fourth Proportional to 2,217.48, 3,326.20 and 919.04

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Solution

The fourth proportional to 2,217.48, 3,326.20 and 919.04 is: 1,378.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.48 : 3,326.20 = 919.04 : x
  2. Step 2: Convert to fraction form
    2,217.48/3,326.20 = 919.04/x
  3. Step 3: Cross multiply
    2,217.48x = 3,326.20 × 919.04
  4. Step 4: Simplify right side
    2,217.48x = 3,056,910.85
  5. Step 5: Solve for x
    x = 3,056,910.85/2,217.48
  6. Step 6: Final answer
    x = 1,378.55

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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.