Home / 1,976.44-2,721.18-1,581.16

Finding the Fourth Proportional to 1,976.44, 2,721.18 and 1,581.16

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Solution

The fourth proportional to 1,976.44, 2,721.18 and 1,581.16 is: 2,176.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976.44 : 2,721.18 = 1,581.16 : x
  2. Step 2: Convert to fraction form
    1,976.44/2,721.18 = 1,581.16/x
  3. Step 3: Cross multiply
    1,976.44x = 2,721.18 × 1,581.16
  4. Step 4: Simplify right side
    1,976.44x = 4,302,620.97
  5. Step 5: Solve for x
    x = 4,302,620.97/1,976.44
  6. Step 6: Final answer
    x = 2,176.96

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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.