Home / 1,976.64-2,727.62-1,136.73

Finding the Fourth Proportional to 1,976.64, 2,727.62 and 1,136.73

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Solution

The fourth proportional to 1,976.64, 2,727.62 and 1,136.73 is: 1,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976.64 : 2,727.62 = 1,136.73 : x
  2. Step 2: Convert to fraction form
    1,976.64/2,727.62 = 1,136.73/x
  3. Step 3: Cross multiply
    1,976.64x = 2,727.62 × 1,136.73
  4. Step 4: Simplify right side
    1,976.64x = 3,100,561.80
  5. Step 5: Solve for x
    x = 3,100,561.80/1,976.64
  6. Step 6: Final answer
    x = 1,568.60

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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.