Home / 1,976.87-2,728.05-1,092.68

Finding the Fourth Proportional to 1,976.87, 2,728.05 and 1,092.68

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Solution

The fourth proportional to 1,976.87, 2,728.05 and 1,092.68 is: 1,507.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976.87 : 2,728.05 = 1,092.68 : x
  2. Step 2: Convert to fraction form
    1,976.87/2,728.05 = 1,092.68/x
  3. Step 3: Cross multiply
    1,976.87x = 2,728.05 × 1,092.68
  4. Step 4: Simplify right side
    1,976.87x = 2,980,892.49
  5. Step 5: Solve for x
    x = 2,980,892.49/1,976.87
  6. Step 6: Final answer
    x = 1,507.88

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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.