Home / 2,822.82-3,895.55-1,563.86

Finding the Fourth Proportional to 2,822.82, 3,895.55 and 1,563.86

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Solution

The fourth proportional to 2,822.82, 3,895.55 and 1,563.86 is: 2,158.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822.82 : 3,895.55 = 1,563.86 : x
  2. Step 2: Convert to fraction form
    2,822.82/3,895.55 = 1,563.86/x
  3. Step 3: Cross multiply
    2,822.82x = 3,895.55 × 1,563.86
  4. Step 4: Simplify right side
    2,822.82x = 6,092,067.53
  5. Step 5: Solve for x
    x = 6,092,067.53/2,822.82
  6. Step 6: Final answer
    x = 2,158.15

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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.