Home / 3,085.80-4,258.39-1,759.92

Finding the Fourth Proportional to 3,085.80, 4,258.39 and 1,759.92

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Solution

The fourth proportional to 3,085.80, 4,258.39 and 1,759.92 is: 2,428.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.80 : 4,258.39 = 1,759.92 : x
  2. Step 2: Convert to fraction form
    3,085.80/4,258.39 = 1,759.92/x
  3. Step 3: Cross multiply
    3,085.80x = 4,258.39 × 1,759.92
  4. Step 4: Simplify right side
    3,085.80x = 7,494,425.73
  5. Step 5: Solve for x
    x = 7,494,425.73/3,085.80
  6. Step 6: Final answer
    x = 2,428.68

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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.