Home / 2,305.06-3,180.96-1,257.13

Finding the Fourth Proportional to 2,305.06, 3,180.96 and 1,257.13

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Solution

The fourth proportional to 2,305.06, 3,180.96 and 1,257.13 is: 1,734.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,305.06 : 3,180.96 = 1,257.13 : x
  2. Step 2: Convert to fraction form
    2,305.06/3,180.96 = 1,257.13/x
  3. Step 3: Cross multiply
    2,305.06x = 3,180.96 × 1,257.13
  4. Step 4: Simplify right side
    2,305.06x = 3,998,880.24
  5. Step 5: Solve for x
    x = 3,998,880.24/2,305.06
  6. Step 6: Final answer
    x = 1,734.83

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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.