Home / 7,187.26-10,781.07-1,993.18

Finding the Fourth Proportional to 7,187.26, 10,781.07 and 1,993.18

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Solution

The fourth proportional to 7,187.26, 10,781.07 and 1,993.18 is: 2,989.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,187.26 : 10,781.07 = 1,993.18 : x
  2. Step 2: Convert to fraction form
    7,187.26/10,781.07 = 1,993.18/x
  3. Step 3: Cross multiply
    7,187.26x = 10,781.07 × 1,993.18
  4. Step 4: Simplify right side
    7,187.26x = 21,488,613.10
  5. Step 5: Solve for x
    x = 21,488,613.10/7,187.26
  6. Step 6: Final answer
    x = 2,989.82

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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.