Home / 2,189.24-3,291.44-1,759.40

Finding the Fourth Proportional to 2,189.24, 3,291.44 and 1,759.40

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Solution

The fourth proportional to 2,189.24, 3,291.44 and 1,759.40 is: 2,645.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.24 : 3,291.44 = 1,759.40 : x
  2. Step 2: Convert to fraction form
    2,189.24/3,291.44 = 1,759.40/x
  3. Step 3: Cross multiply
    2,189.24x = 3,291.44 × 1,759.40
  4. Step 4: Simplify right side
    2,189.24x = 5,790,959.54
  5. Step 5: Solve for x
    x = 5,790,959.54/2,189.24
  6. Step 6: Final answer
    x = 2,645.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.