Home / 2,190.14-3,022.19-1,195.40

Finding the Fourth Proportional to 2,190.14, 3,022.19 and 1,195.40

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Solution

The fourth proportional to 2,190.14, 3,022.19 and 1,195.40 is: 1,649.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.14 : 3,022.19 = 1,195.40 : x
  2. Step 2: Convert to fraction form
    2,190.14/3,022.19 = 1,195.40/x
  3. Step 3: Cross multiply
    2,190.14x = 3,022.19 × 1,195.40
  4. Step 4: Simplify right side
    2,190.14x = 3,612,725.93
  5. Step 5: Solve for x
    x = 3,612,725.93/2,190.14
  6. Step 6: Final answer
    x = 1,649.54

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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.