Home / 3,085.75-4,258.34-1,843.75

Finding the Fourth Proportional to 3,085.75, 4,258.34 and 1,843.75

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Solution

The fourth proportional to 3,085.75, 4,258.34 and 1,843.75 is: 2,544.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.75 : 4,258.34 = 1,843.75 : x
  2. Step 2: Convert to fraction form
    3,085.75/4,258.34 = 1,843.75/x
  3. Step 3: Cross multiply
    3,085.75x = 4,258.34 × 1,843.75
  4. Step 4: Simplify right side
    3,085.75x = 7,851,314.38
  5. Step 5: Solve for x
    x = 7,851,314.38/3,085.75
  6. Step 6: Final answer
    x = 2,544.38

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Half scale
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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.