Home / 1,286.44-1,926.36-1,080.52

Finding the Fourth Proportional to 1,286.44, 1,926.36 and 1,080.52

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Solution

The fourth proportional to 1,286.44, 1,926.36 and 1,080.52 is: 1,618.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286.44 : 1,926.36 = 1,080.52 : x
  2. Step 2: Convert to fraction form
    1,286.44/1,926.36 = 1,080.52/x
  3. Step 3: Cross multiply
    1,286.44x = 1,926.36 × 1,080.52
  4. Step 4: Simplify right side
    1,286.44x = 2,081,470.51
  5. Step 5: Solve for x
    x = 2,081,470.51/1,286.44
  6. Step 6: Final answer
    x = 1,618.01

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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.