Home / 3,080.31-4,620.35-1,028.31

Finding the Fourth Proportional to 3,080.31, 4,620.35 and 1,028.31

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Solution

The fourth proportional to 3,080.31, 4,620.35 and 1,028.31 is: 1,542.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.31 : 4,620.35 = 1,028.31 : x
  2. Step 2: Convert to fraction form
    3,080.31/4,620.35 = 1,028.31/x
  3. Step 3: Cross multiply
    3,080.31x = 4,620.35 × 1,028.31
  4. Step 4: Simplify right side
    3,080.31x = 4,751,146.97
  5. Step 5: Solve for x
    x = 4,751,146.97/3,080.31
  6. Step 6: Final answer
    x = 1,542.42

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1.5x scale

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.