Home / 1,936.92-2,906.10-1,392.60

Finding the Fourth Proportional to 1,936.92, 2,906.10 and 1,392.60

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Solution

The fourth proportional to 1,936.92, 2,906.10 and 1,392.60 is: 2,089.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.92 : 2,906.10 = 1,392.60 : x
  2. Step 2: Convert to fraction form
    1,936.92/2,906.10 = 1,392.60/x
  3. Step 3: Cross multiply
    1,936.92x = 2,906.10 × 1,392.60
  4. Step 4: Simplify right side
    1,936.92x = 4,047,034.86
  5. Step 5: Solve for x
    x = 4,047,034.86/1,936.92
  6. Step 6: Final answer
    x = 2,089.42

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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.