Home / 2,820.83-4,231.04-1,260.97

Finding the Fourth Proportional to 2,820.83, 4,231.04 and 1,260.97

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Solution

The fourth proportional to 2,820.83, 4,231.04 and 1,260.97 is: 1,891.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.83 : 4,231.04 = 1,260.97 : x
  2. Step 2: Convert to fraction form
    2,820.83/4,231.04 = 1,260.97/x
  3. Step 3: Cross multiply
    2,820.83x = 4,231.04 × 1,260.97
  4. Step 4: Simplify right side
    2,820.83x = 5,335,214.51
  5. Step 5: Solve for x
    x = 5,335,214.51/2,820.83
  6. Step 6: Final answer
    x = 1,891.36

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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.