Home / 2,305.12-3,180.94-1,310.28

Finding the Fourth Proportional to 2,305.12, 3,180.94 and 1,310.28

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Solution

The fourth proportional to 2,305.12, 3,180.94 and 1,310.28 is: 1,808.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,305.12 : 3,180.94 = 1,310.28 : x
  2. Step 2: Convert to fraction form
    2,305.12/3,180.94 = 1,310.28/x
  3. Step 3: Cross multiply
    2,305.12x = 3,180.94 × 1,310.28
  4. Step 4: Simplify right side
    2,305.12x = 4,167,922.06
  5. Step 5: Solve for x
    x = 4,167,922.06/2,305.12
  6. Step 6: Final answer
    x = 1,808.12

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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.