Home / 2,190.34-3,022.68-1,195.61

Finding the Fourth Proportional to 2,190.34, 3,022.68 and 1,195.61

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Solution

The fourth proportional to 2,190.34, 3,022.68 and 1,195.61 is: 1,649.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.34 : 3,022.68 = 1,195.61 : x
  2. Step 2: Convert to fraction form
    2,190.34/3,022.68 = 1,195.61/x
  3. Step 3: Cross multiply
    2,190.34x = 3,022.68 × 1,195.61
  4. Step 4: Simplify right side
    2,190.34x = 3,613,940.46
  5. Step 5: Solve for x
    x = 3,613,940.46/2,190.34
  6. Step 6: Final answer
    x = 1,649.95

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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.