Home / 2,819.64-4,231.29-1,260.60

Finding the Fourth Proportional to 2,819.64, 4,231.29 and 1,260.60

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Solution

The fourth proportional to 2,819.64, 4,231.29 and 1,260.60 is: 1,891.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.64 : 4,231.29 = 1,260.60 : x
  2. Step 2: Convert to fraction form
    2,819.64/4,231.29 = 1,260.60/x
  3. Step 3: Cross multiply
    2,819.64x = 4,231.29 × 1,260.60
  4. Step 4: Simplify right side
    2,819.64x = 5,333,964.17
  5. Step 5: Solve for x
    x = 5,333,964.17/2,819.64
  6. Step 6: Final answer
    x = 1,891.72

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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.