Home / 1,961.64-2,936.70-1,186.92

Finding the Fourth Proportional to 1,961.64, 2,936.70 and 1,186.92

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Solution

The fourth proportional to 1,961.64, 2,936.70 and 1,186.92 is: 1,776.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.64 : 2,936.70 = 1,186.92 : x
  2. Step 2: Convert to fraction form
    1,961.64/2,936.70 = 1,186.92/x
  3. Step 3: Cross multiply
    1,961.64x = 2,936.70 × 1,186.92
  4. Step 4: Simplify right side
    1,961.64x = 3,485,627.96
  5. Step 5: Solve for x
    x = 3,485,627.96/1,961.64
  6. Step 6: Final answer
    x = 1,776.89

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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.