Home / 3,519.87-4,858.21-2,028.05

Finding the Fourth Proportional to 3,519.87, 4,858.21 and 2,028.05

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Solution

The fourth proportional to 3,519.87, 4,858.21 and 2,028.05 is: 2,799.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.87 : 4,858.21 = 2,028.05 : x
  2. Step 2: Convert to fraction form
    3,519.87/4,858.21 = 2,028.05/x
  3. Step 3: Cross multiply
    3,519.87x = 4,858.21 × 2,028.05
  4. Step 4: Simplify right side
    3,519.87x = 9,852,692.79
  5. Step 5: Solve for x
    x = 9,852,692.79/3,519.87
  6. Step 6: Final answer
    x = 2,799.16

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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.