Home / 3,085.75-4,258.56-1,759.49

Finding the Fourth Proportional to 3,085.75, 4,258.56 and 1,759.49

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Solution

The fourth proportional to 3,085.75, 4,258.56 and 1,759.49 is: 2,428.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.75 : 4,258.56 = 1,759.49 : x
  2. Step 2: Convert to fraction form
    3,085.75/4,258.56 = 1,759.49/x
  3. Step 3: Cross multiply
    3,085.75x = 4,258.56 × 1,759.49
  4. Step 4: Simplify right side
    3,085.75x = 7,492,872.44
  5. Step 5: Solve for x
    x = 7,492,872.44/3,085.75
  6. Step 6: Final answer
    x = 2,428.22

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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.