Home / 2,106.38-2,906.66-1,162.12

Finding the Fourth Proportional to 2,106.38, 2,906.66 and 1,162.12

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Solution

The fourth proportional to 2,106.38, 2,906.66 and 1,162.12 is: 1,603.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.38 : 2,906.66 = 1,162.12 : x
  2. Step 2: Convert to fraction form
    2,106.38/2,906.66 = 1,162.12/x
  3. Step 3: Cross multiply
    2,106.38x = 2,906.66 × 1,162.12
  4. Step 4: Simplify right side
    2,106.38x = 3,377,867.38
  5. Step 5: Solve for x
    x = 3,377,867.38/2,106.38
  6. Step 6: Final answer
    x = 1,603.64

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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.