Home / 1,936.30-2,905.80-1,244.65

Finding the Fourth Proportional to 1,936.30, 2,905.80 and 1,244.65

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Solution

The fourth proportional to 1,936.30, 2,905.80 and 1,244.65 is: 1,867.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.30 : 2,905.80 = 1,244.65 : x
  2. Step 2: Convert to fraction form
    1,936.30/2,905.80 = 1,244.65/x
  3. Step 3: Cross multiply
    1,936.30x = 2,905.80 × 1,244.65
  4. Step 4: Simplify right side
    1,936.30x = 3,616,703.97
  5. Step 5: Solve for x
    x = 3,616,703.97/1,936.30
  6. Step 6: Final answer
    x = 1,867.84

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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.