Home / 2,189.94-3,022.01-1,245.88

Finding the Fourth Proportional to 2,189.94, 3,022.01 and 1,245.88

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Solution

The fourth proportional to 2,189.94, 3,022.01 and 1,245.88 is: 1,719.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.94 : 3,022.01 = 1,245.88 : x
  2. Step 2: Convert to fraction form
    2,189.94/3,022.01 = 1,245.88/x
  3. Step 3: Cross multiply
    2,189.94x = 3,022.01 × 1,245.88
  4. Step 4: Simplify right side
    2,189.94x = 3,765,064.04
  5. Step 5: Solve for x
    x = 3,765,064.04/2,189.94
  6. Step 6: Final answer
    x = 1,719.26

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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.