Home / 2,217.24-3,323.60-1,121.02

Finding the Fourth Proportional to 2,217.24, 3,323.60 and 1,121.02

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Solution

The fourth proportional to 2,217.24, 3,323.60 and 1,121.02 is: 1,680.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.24 : 3,323.60 = 1,121.02 : x
  2. Step 2: Convert to fraction form
    2,217.24/3,323.60 = 1,121.02/x
  3. Step 3: Cross multiply
    2,217.24x = 3,323.60 × 1,121.02
  4. Step 4: Simplify right side
    2,217.24x = 3,725,822.07
  5. Step 5: Solve for x
    x = 3,725,822.07/2,217.24
  6. Step 6: Final answer
    x = 1,680.39

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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.