Home / 3,080.66-4,620.65-1,231.30

Finding the Fourth Proportional to 3,080.66, 4,620.65 and 1,231.30

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Solution

The fourth proportional to 3,080.66, 4,620.65 and 1,231.30 is: 1,846.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.66 : 4,620.65 = 1,231.30 : x
  2. Step 2: Convert to fraction form
    3,080.66/4,620.65 = 1,231.30/x
  3. Step 3: Cross multiply
    3,080.66x = 4,620.65 × 1,231.30
  4. Step 4: Simplify right side
    3,080.66x = 5,689,383.24
  5. Step 5: Solve for x
    x = 5,689,383.24/3,080.66
  6. Step 6: Final answer
    x = 1,846.81

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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.