Home / 2,186.82-3,017.85-1,192.14

Finding the Fourth Proportional to 2,186.82, 3,017.85 and 1,192.14

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Solution

The fourth proportional to 2,186.82, 3,017.85 and 1,192.14 is: 1,645.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.82 : 3,017.85 = 1,192.14 : x
  2. Step 2: Convert to fraction form
    2,186.82/3,017.85 = 1,192.14/x
  3. Step 3: Cross multiply
    2,186.82x = 3,017.85 × 1,192.14
  4. Step 4: Simplify right side
    2,186.82x = 3,597,699.70
  5. Step 5: Solve for x
    x = 3,597,699.70/2,186.82
  6. Step 6: Final answer
    x = 1,645.17

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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.