Home / 3,221.92-4,448.40-2,173.60

Finding the Fourth Proportional to 3,221.92, 4,448.40 and 2,173.60

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Solution

The fourth proportional to 3,221.92, 4,448.40 and 2,173.60 is: 3,001.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.92 : 4,448.40 = 2,173.60 : x
  2. Step 2: Convert to fraction form
    3,221.92/4,448.40 = 2,173.60/x
  3. Step 3: Cross multiply
    3,221.92x = 4,448.40 × 2,173.60
  4. Step 4: Simplify right side
    3,221.92x = 9,669,042.24
  5. Step 5: Solve for x
    x = 9,669,042.24/3,221.92
  6. Step 6: Final answer
    x = 3,001.02

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1.5x scale

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.