Home / 2,192.38-3,288.06-1,080.70

Finding the Fourth Proportional to 2,192.38, 3,288.06 and 1,080.70

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Solution

The fourth proportional to 2,192.38, 3,288.06 and 1,080.70 is: 1,620.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192.38 : 3,288.06 = 1,080.70 : x
  2. Step 2: Convert to fraction form
    2,192.38/3,288.06 = 1,080.70/x
  3. Step 3: Cross multiply
    2,192.38x = 3,288.06 × 1,080.70
  4. Step 4: Simplify right side
    2,192.38x = 3,553,398.22
  5. Step 5: Solve for x
    x = 3,553,398.22/2,192.38
  6. Step 6: Final answer
    x = 1,620.80

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1.5x scale

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.