Home / 2,851.92-3,932.82-1,855.08

Finding the Fourth Proportional to 2,851.92, 3,932.82 and 1,855.08

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Solution

The fourth proportional to 2,851.92, 3,932.82 and 1,855.08 is: 2,558.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.92 : 3,932.82 = 1,855.08 : x
  2. Step 2: Convert to fraction form
    2,851.92/3,932.82 = 1,855.08/x
  3. Step 3: Cross multiply
    2,851.92x = 3,932.82 × 1,855.08
  4. Step 4: Simplify right side
    2,851.92x = 7,295,695.73
  5. Step 5: Solve for x
    x = 7,295,695.73/2,851.92
  6. Step 6: Final answer
    x = 2,558.17

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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.