Home / 1,976.38-2,727.93-1,190.32

Finding the Fourth Proportional to 1,976.38, 2,727.93 and 1,190.32

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Solution

The fourth proportional to 1,976.38, 2,727.93 and 1,190.32 is: 1,642.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976.38 : 2,727.93 = 1,190.32 : x
  2. Step 2: Convert to fraction form
    1,976.38/2,727.93 = 1,190.32/x
  3. Step 3: Cross multiply
    1,976.38x = 2,727.93 × 1,190.32
  4. Step 4: Simplify right side
    1,976.38x = 3,247,109.64
  5. Step 5: Solve for x
    x = 3,247,109.64/1,976.38
  6. Step 6: Final answer
    x = 1,642.96

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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.