Home / 2,186.22-3,279.37-1,218.48

Finding the Fourth Proportional to 2,186.22, 3,279.37 and 1,218.48

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Solution

The fourth proportional to 2,186.22, 3,279.37 and 1,218.48 is: 1,827.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.22 : 3,279.37 = 1,218.48 : x
  2. Step 2: Convert to fraction form
    2,186.22/3,279.37 = 1,218.48/x
  3. Step 3: Cross multiply
    2,186.22x = 3,279.37 × 1,218.48
  4. Step 4: Simplify right side
    2,186.22x = 3,995,833.70
  5. Step 5: Solve for x
    x = 3,995,833.70/2,186.22
  6. Step 6: Final answer
    x = 1,827.73

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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.