Home / 2,168.44-2,993.76-1,722.12

Finding the Fourth Proportional to 2,168.44, 2,993.76 and 1,722.12

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Solution

The fourth proportional to 2,168.44, 2,993.76 and 1,722.12 is: 2,377.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168.44 : 2,993.76 = 1,722.12 : x
  2. Step 2: Convert to fraction form
    2,168.44/2,993.76 = 1,722.12/x
  3. Step 3: Cross multiply
    2,168.44x = 2,993.76 × 1,722.12
  4. Step 4: Simplify right side
    2,168.44x = 5,155,613.97
  5. Step 5: Solve for x
    x = 5,155,613.97/2,168.44
  6. Step 6: Final answer
    x = 2,377.57

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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.