Home / 1,977.39-2,728.67-1,093.21

Finding the Fourth Proportional to 1,977.39, 2,728.67 and 1,093.21

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Solution

The fourth proportional to 1,977.39, 2,728.67 and 1,093.21 is: 1,508.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977.39 : 2,728.67 = 1,093.21 : x
  2. Step 2: Convert to fraction form
    1,977.39/2,728.67 = 1,093.21/x
  3. Step 3: Cross multiply
    1,977.39x = 2,728.67 × 1,093.21
  4. Step 4: Simplify right side
    1,977.39x = 2,982,997.04
  5. Step 5: Solve for x
    x = 2,982,997.04/1,977.39
  6. Step 6: Final answer
    x = 1,508.55

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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.