Home / 2,819.90-4,231.68-1,522.28

Finding the Fourth Proportional to 2,819.90, 4,231.68 and 1,522.28

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Solution

The fourth proportional to 2,819.90, 4,231.68 and 1,522.28 is: 2,284.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.90 : 4,231.68 = 1,522.28 : x
  2. Step 2: Convert to fraction form
    2,819.90/4,231.68 = 1,522.28/x
  3. Step 3: Cross multiply
    2,819.90x = 4,231.68 × 1,522.28
  4. Step 4: Simplify right side
    2,819.90x = 6,441,801.83
  5. Step 5: Solve for x
    x = 6,441,801.83/2,819.90
  6. Step 6: Final answer
    x = 2,284.41

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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.