Home / 2,186.13-3,016.82-1,191.42

Finding the Fourth Proportional to 2,186.13, 3,016.82 and 1,191.42

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Solution

The fourth proportional to 2,186.13, 3,016.82 and 1,191.42 is: 1,644.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.13 : 3,016.82 = 1,191.42 : x
  2. Step 2: Convert to fraction form
    2,186.13/3,016.82 = 1,191.42/x
  3. Step 3: Cross multiply
    2,186.13x = 3,016.82 × 1,191.42
  4. Step 4: Simplify right side
    2,186.13x = 3,594,278.64
  5. Step 5: Solve for x
    x = 3,594,278.64/2,186.13
  6. Step 6: Final answer
    x = 1,644.13

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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.