Home / 2,305.04-3,180.96-1,257.14

Finding the Fourth Proportional to 2,305.04, 3,180.96 and 1,257.14

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Solution

The fourth proportional to 2,305.04, 3,180.96 and 1,257.14 is: 1,734.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,305.04 : 3,180.96 = 1,257.14 : x
  2. Step 2: Convert to fraction form
    2,305.04/3,180.96 = 1,257.14/x
  3. Step 3: Cross multiply
    2,305.04x = 3,180.96 × 1,257.14
  4. Step 4: Simplify right side
    2,305.04x = 3,998,912.05
  5. Step 5: Solve for x
    x = 3,998,912.05/2,305.04
  6. Step 6: Final answer
    x = 1,734.86

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1.5x scale

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.