Home / 2,809.08-3,872.97-1,851.84

Finding the Fourth Proportional to 2,809.08, 3,872.97 and 1,851.84

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Solution

The fourth proportional to 2,809.08, 3,872.97 and 1,851.84 is: 2,553.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.08 : 3,872.97 = 1,851.84 : x
  2. Step 2: Convert to fraction form
    2,809.08/3,872.97 = 1,851.84/x
  3. Step 3: Cross multiply
    2,809.08x = 3,872.97 × 1,851.84
  4. Step 4: Simplify right side
    2,809.08x = 7,172,120.76
  5. Step 5: Solve for x
    x = 7,172,120.76/2,809.08
  6. Step 6: Final answer
    x = 2,553.19

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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.