Home / 3,212.80-4,819.91-2,038.66

Finding the Fourth Proportional to 3,212.80, 4,819.91 and 2,038.66

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Solution

The fourth proportional to 3,212.80, 4,819.91 and 2,038.66 is: 3,058.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.80 : 4,819.91 = 2,038.66 : x
  2. Step 2: Convert to fraction form
    3,212.80/4,819.91 = 2,038.66/x
  3. Step 3: Cross multiply
    3,212.80x = 4,819.91 × 2,038.66
  4. Step 4: Simplify right side
    3,212.80x = 9,826,157.72
  5. Step 5: Solve for x
    x = 9,826,157.72/3,212.80
  6. Step 6: Final answer
    x = 3,058.44

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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.