Home / 2,190.06-3,022.34-1,195.43

Finding the Fourth Proportional to 2,190.06, 3,022.34 and 1,195.43

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Solution

The fourth proportional to 2,190.06, 3,022.34 and 1,195.43 is: 1,649.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.06 : 3,022.34 = 1,195.43 : x
  2. Step 2: Convert to fraction form
    2,190.06/3,022.34 = 1,195.43/x
  3. Step 3: Cross multiply
    2,190.06x = 3,022.34 × 1,195.43
  4. Step 4: Simplify right side
    2,190.06x = 3,612,995.91
  5. Step 5: Solve for x
    x = 3,612,995.91/2,190.06
  6. Step 6: Final answer
    x = 1,649.72

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Half scale
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Double scale
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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.