Home / 1,976.81-2,727.87-1,092.61

Finding the Fourth Proportional to 1,976.81, 2,727.87 and 1,092.61

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Solution

The fourth proportional to 1,976.81, 2,727.87 and 1,092.61 is: 1,507.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976.81 : 2,727.87 = 1,092.61 : x
  2. Step 2: Convert to fraction form
    1,976.81/2,727.87 = 1,092.61/x
  3. Step 3: Cross multiply
    1,976.81x = 2,727.87 × 1,092.61
  4. Step 4: Simplify right side
    1,976.81x = 2,980,491.22
  5. Step 5: Solve for x
    x = 2,980,491.22/1,976.81
  6. Step 6: Final answer
    x = 1,507.73

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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.