Home / 2,161.26-3,241.90-1,186.82

Finding the Fourth Proportional to 2,161.26, 3,241.90 and 1,186.82

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Solution

The fourth proportional to 2,161.26, 3,241.90 and 1,186.82 is: 1,780.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.26 : 3,241.90 = 1,186.82 : x
  2. Step 2: Convert to fraction form
    2,161.26/3,241.90 = 1,186.82/x
  3. Step 3: Cross multiply
    2,161.26x = 3,241.90 × 1,186.82
  4. Step 4: Simplify right side
    2,161.26x = 3,847,551.76
  5. Step 5: Solve for x
    x = 3,847,551.76/2,161.26
  6. Step 6: Final answer
    x = 1,780.24

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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.