Home / 2,766.70-4,144.65-1,667.80

Finding the Fourth Proportional to 2,766.70, 4,144.65 and 1,667.80

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Solution

The fourth proportional to 2,766.70, 4,144.65 and 1,667.80 is: 2,498.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.70 : 4,144.65 = 1,667.80 : x
  2. Step 2: Convert to fraction form
    2,766.70/4,144.65 = 1,667.80/x
  3. Step 3: Cross multiply
    2,766.70x = 4,144.65 × 1,667.80
  4. Step 4: Simplify right side
    2,766.70x = 6,912,447.27
  5. Step 5: Solve for x
    x = 6,912,447.27/2,766.70
  6. Step 6: Final answer
    x = 2,498.44

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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.