Home / 1,976.58-2,727.90-1,190.61

Finding the Fourth Proportional to 1,976.58, 2,727.90 and 1,190.61

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Solution

The fourth proportional to 1,976.58, 2,727.90 and 1,190.61 is: 1,643.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976.58 : 2,727.90 = 1,190.61 : x
  2. Step 2: Convert to fraction form
    1,976.58/2,727.90 = 1,190.61/x
  3. Step 3: Cross multiply
    1,976.58x = 2,727.90 × 1,190.61
  4. Step 4: Simplify right side
    1,976.58x = 3,247,865.02
  5. Step 5: Solve for x
    x = 3,247,865.02/1,976.58
  6. Step 6: Final answer
    x = 1,643.17

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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.