Home / 2,819.31-4,225.37-1,521.87

Finding the Fourth Proportional to 2,819.31, 4,225.37 and 1,521.87

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Solution

The fourth proportional to 2,819.31, 4,225.37 and 1,521.87 is: 2,280.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.31 : 4,225.37 = 1,521.87 : x
  2. Step 2: Convert to fraction form
    2,819.31/4,225.37 = 1,521.87/x
  3. Step 3: Cross multiply
    2,819.31x = 4,225.37 × 1,521.87
  4. Step 4: Simplify right side
    2,819.31x = 6,430,456.23
  5. Step 5: Solve for x
    x = 6,430,456.23/2,819.31
  6. Step 6: Final answer
    x = 2,280.86

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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.