Home / 1,936.80-2,672.85-1,097.54

Finding the Fourth Proportional to 1,936.80, 2,672.85 and 1,097.54

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Solution

The fourth proportional to 1,936.80, 2,672.85 and 1,097.54 is: 1,514.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.80 : 2,672.85 = 1,097.54 : x
  2. Step 2: Convert to fraction form
    1,936.80/2,672.85 = 1,097.54/x
  3. Step 3: Cross multiply
    1,936.80x = 2,672.85 × 1,097.54
  4. Step 4: Simplify right side
    1,936.80x = 2,933,559.79
  5. Step 5: Solve for x
    x = 2,933,559.79/1,936.80
  6. Step 6: Final answer
    x = 1,514.64

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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.