Home / 2,028.80-3,039.30-1,560.80

Finding the Fourth Proportional to 2,028.80, 3,039.30 and 1,560.80

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Solution

The fourth proportional to 2,028.80, 3,039.30 and 1,560.80 is: 2,338.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,028.80 : 3,039.30 = 1,560.80 : x
  2. Step 2: Convert to fraction form
    2,028.80/3,039.30 = 1,560.80/x
  3. Step 3: Cross multiply
    2,028.80x = 3,039.30 × 1,560.80
  4. Step 4: Simplify right side
    2,028.80x = 4,743,739.44
  5. Step 5: Solve for x
    x = 4,743,739.44/2,028.80
  6. Step 6: Final answer
    x = 2,338.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.