Home / 1,936.45-2,672.30-1,097.21

Finding the Fourth Proportional to 1,936.45, 2,672.30 and 1,097.21

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Solution

The fourth proportional to 1,936.45, 2,672.30 and 1,097.21 is: 1,514.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.45 : 2,672.30 = 1,097.21 : x
  2. Step 2: Convert to fraction form
    1,936.45/2,672.30 = 1,097.21/x
  3. Step 3: Cross multiply
    1,936.45x = 2,672.30 × 1,097.21
  4. Step 4: Simplify right side
    1,936.45x = 2,932,080.75
  5. Step 5: Solve for x
    x = 2,932,080.75/1,936.45
  6. Step 6: Final answer
    x = 1,514.15

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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.