Home / 2,820.36-4,231.44-1,359.60

Finding the Fourth Proportional to 2,820.36, 4,231.44 and 1,359.60

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Solution

The fourth proportional to 2,820.36, 4,231.44 and 1,359.60 is: 2,039.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.36 : 4,231.44 = 1,359.60 : x
  2. Step 2: Convert to fraction form
    2,820.36/4,231.44 = 1,359.60/x
  3. Step 3: Cross multiply
    2,820.36x = 4,231.44 × 1,359.60
  4. Step 4: Simplify right side
    2,820.36x = 5,753,065.82
  5. Step 5: Solve for x
    x = 5,753,065.82/2,820.36
  6. Step 6: Final answer
    x = 2,039.83

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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.