Home / 2,305.58-3,181.73-1,257.65

Finding the Fourth Proportional to 2,305.58, 3,181.73 and 1,257.65

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Solution

The fourth proportional to 2,305.58, 3,181.73 and 1,257.65 is: 1,735.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,305.58 : 3,181.73 = 1,257.65 : x
  2. Step 2: Convert to fraction form
    2,305.58/3,181.73 = 1,257.65/x
  3. Step 3: Cross multiply
    2,305.58x = 3,181.73 × 1,257.65
  4. Step 4: Simplify right side
    2,305.58x = 4,001,480.54
  5. Step 5: Solve for x
    x = 4,001,480.54/2,305.58
  6. Step 6: Final answer
    x = 1,735.57

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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.