Home / 1,975.92-2,727.12-1,190.08

Finding the Fourth Proportional to 1,975.92, 2,727.12 and 1,190.08

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Solution

The fourth proportional to 1,975.92, 2,727.12 and 1,190.08 is: 1,642.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.92 : 2,727.12 = 1,190.08 : x
  2. Step 2: Convert to fraction form
    1,975.92/2,727.12 = 1,190.08/x
  3. Step 3: Cross multiply
    1,975.92x = 2,727.12 × 1,190.08
  4. Step 4: Simplify right side
    1,975.92x = 3,245,490.97
  5. Step 5: Solve for x
    x = 3,245,490.97/1,975.92
  6. Step 6: Final answer
    x = 1,642.52

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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.