Home / 1,959.38-2,936.40-1,080.56

Finding the Fourth Proportional to 1,959.38, 2,936.40 and 1,080.56

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Solution

The fourth proportional to 1,959.38, 2,936.40 and 1,080.56 is: 1,619.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,959.38 : 2,936.40 = 1,080.56 : x
  2. Step 2: Convert to fraction form
    1,959.38/2,936.40 = 1,080.56/x
  3. Step 3: Cross multiply
    1,959.38x = 2,936.40 × 1,080.56
  4. Step 4: Simplify right side
    1,959.38x = 3,172,961.02
  5. Step 5: Solve for x
    x = 3,172,961.02/1,959.38
  6. Step 6: Final answer
    x = 1,619.37

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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.