Home / 3,520.79-4,858.68-2,028.69

Finding the Fourth Proportional to 3,520.79, 4,858.68 and 2,028.69

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Solution

The fourth proportional to 3,520.79, 4,858.68 and 2,028.69 is: 2,799.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.79 : 4,858.68 = 2,028.69 : x
  2. Step 2: Convert to fraction form
    3,520.79/4,858.68 = 2,028.69/x
  3. Step 3: Cross multiply
    3,520.79x = 4,858.68 × 2,028.69
  4. Step 4: Simplify right side
    3,520.79x = 9,856,755.53
  5. Step 5: Solve for x
    x = 9,856,755.53/3,520.79
  6. Step 6: Final answer
    x = 2,799.59

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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.