Home / 2,128.11-2,936.48-1,196.43

Finding the Fourth Proportional to 2,128.11, 2,936.48 and 1,196.43

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Solution

The fourth proportional to 2,128.11, 2,936.48 and 1,196.43 is: 1,650.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128.11 : 2,936.48 = 1,196.43 : x
  2. Step 2: Convert to fraction form
    2,128.11/2,936.48 = 1,196.43/x
  3. Step 3: Cross multiply
    2,128.11x = 2,936.48 × 1,196.43
  4. Step 4: Simplify right side
    2,128.11x = 3,513,286.78
  5. Step 5: Solve for x
    x = 3,513,286.78/2,128.11
  6. Step 6: Final answer
    x = 1,650.90

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.