Home / 1,936.84-2,905.77-1,243.83

Finding the Fourth Proportional to 1,936.84, 2,905.77 and 1,243.83

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Solution

The fourth proportional to 1,936.84, 2,905.77 and 1,243.83 is: 1,866.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.84 : 2,905.77 = 1,243.83 : x
  2. Step 2: Convert to fraction form
    1,936.84/2,905.77 = 1,243.83/x
  3. Step 3: Cross multiply
    1,936.84x = 2,905.77 × 1,243.83
  4. Step 4: Simplify right side
    1,936.84x = 3,614,283.90
  5. Step 5: Solve for x
    x = 3,614,283.90/1,936.84
  6. Step 6: Final answer
    x = 1,866.07

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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.