Home / 1,977.10-2,728.43-1,092.89

Finding the Fourth Proportional to 1,977.10, 2,728.43 and 1,092.89

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Solution

The fourth proportional to 1,977.10, 2,728.43 and 1,092.89 is: 1,508.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977.10 : 2,728.43 = 1,092.89 : x
  2. Step 2: Convert to fraction form
    1,977.10/2,728.43 = 1,092.89/x
  3. Step 3: Cross multiply
    1,977.10x = 2,728.43 × 1,092.89
  4. Step 4: Simplify right side
    1,977.10x = 2,981,873.86
  5. Step 5: Solve for x
    x = 2,981,873.86/1,977.10
  6. Step 6: Final answer
    x = 1,508.21

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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.