Home / 4,149.90-6,212.70-2,764.80

Finding the Fourth Proportional to 4,149.90, 6,212.70 and 2,764.80

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Solution

The fourth proportional to 4,149.90, 6,212.70 and 2,764.80 is: 4,139.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,149.90 : 6,212.70 = 2,764.80 : x
  2. Step 2: Convert to fraction form
    4,149.90/6,212.70 = 2,764.80/x
  3. Step 3: Cross multiply
    4,149.90x = 6,212.70 × 2,764.80
  4. Step 4: Simplify right side
    4,149.90x = 17,176,872.96
  5. Step 5: Solve for x
    x = 17,176,872.96/4,149.90
  6. Step 6: Final answer
    x = 4,139.11

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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.