Home / 2,819.31-4,230.06-2,040.30

Finding the Fourth Proportional to 2,819.31, 4,230.06 and 2,040.30

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Solution

The fourth proportional to 2,819.31, 4,230.06 and 2,040.30 is: 3,061.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.31 : 4,230.06 = 2,040.30 : x
  2. Step 2: Convert to fraction form
    2,819.31/4,230.06 = 2,040.30/x
  3. Step 3: Cross multiply
    2,819.31x = 4,230.06 × 2,040.30
  4. Step 4: Simplify right side
    2,819.31x = 8,630,591.42
  5. Step 5: Solve for x
    x = 8,630,591.42/2,819.31
  6. Step 6: Final answer
    x = 3,061.24

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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.