Home / 2,305.49-3,181.66-1,310.85

Finding the Fourth Proportional to 2,305.49, 3,181.66 and 1,310.85

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Solution

The fourth proportional to 2,305.49, 3,181.66 and 1,310.85 is: 1,809.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,305.49 : 3,181.66 = 1,310.85 : x
  2. Step 2: Convert to fraction form
    2,305.49/3,181.66 = 1,310.85/x
  3. Step 3: Cross multiply
    2,305.49x = 3,181.66 × 1,310.85
  4. Step 4: Simplify right side
    2,305.49x = 4,170,687.67
  5. Step 5: Solve for x
    x = 4,170,687.67/2,305.49
  6. Step 6: Final answer
    x = 1,809.03

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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.