Home / 2,190.23-3,022.56-1,195.55

Finding the Fourth Proportional to 2,190.23, 3,022.56 and 1,195.55

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Solution

The fourth proportional to 2,190.23, 3,022.56 and 1,195.55 is: 1,649.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.23 : 3,022.56 = 1,195.55 : x
  2. Step 2: Convert to fraction form
    2,190.23/3,022.56 = 1,195.55/x
  3. Step 3: Cross multiply
    2,190.23x = 3,022.56 × 1,195.55
  4. Step 4: Simplify right side
    2,190.23x = 3,613,602.01
  5. Step 5: Solve for x
    x = 3,613,602.01/2,190.23
  6. Step 6: Final answer
    x = 1,649.88

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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.