Home / 2,190.26-3,279.65-1,749.48

Finding the Fourth Proportional to 2,190.26, 3,279.65 and 1,749.48

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Solution

The fourth proportional to 2,190.26, 3,279.65 and 1,749.48 is: 2,619.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.26 : 3,279.65 = 1,749.48 : x
  2. Step 2: Convert to fraction form
    2,190.26/3,279.65 = 1,749.48/x
  3. Step 3: Cross multiply
    2,190.26x = 3,279.65 × 1,749.48
  4. Step 4: Simplify right side
    2,190.26x = 5,737,673.33
  5. Step 5: Solve for x
    x = 5,737,673.33/2,190.26
  6. Step 6: Final answer
    x = 2,619.64

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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.