Home / 2,192.20-3,290.88-1,730.30

Finding the Fourth Proportional to 2,192.20, 3,290.88 and 1,730.30

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Solution

The fourth proportional to 2,192.20, 3,290.88 and 1,730.30 is: 2,597.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192.20 : 3,290.88 = 1,730.30 : x
  2. Step 2: Convert to fraction form
    2,192.20/3,290.88 = 1,730.30/x
  3. Step 3: Cross multiply
    2,192.20x = 3,290.88 × 1,730.30
  4. Step 4: Simplify right side
    2,192.20x = 5,694,189.97
  5. Step 5: Solve for x
    x = 5,694,189.97/2,192.20
  6. Step 6: Final answer
    x = 2,597.48

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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.