Home / 3,085.40-4,257.97-1,759.09

Finding the Fourth Proportional to 3,085.40, 4,257.97 and 1,759.09

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Solution

The fourth proportional to 3,085.40, 4,257.97 and 1,759.09 is: 2,427.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.40 : 4,257.97 = 1,759.09 : x
  2. Step 2: Convert to fraction form
    3,085.40/4,257.97 = 1,759.09/x
  3. Step 3: Cross multiply
    3,085.40x = 4,257.97 × 1,759.09
  4. Step 4: Simplify right side
    3,085.40x = 7,490,143.65
  5. Step 5: Solve for x
    x = 7,490,143.65/3,085.40
  6. Step 6: Final answer
    x = 2,427.61

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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.