Home / 3,311.72-4,968.78-1,751.80

Finding the Fourth Proportional to 3,311.72, 4,968.78 and 1,751.80

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Solution

The fourth proportional to 3,311.72, 4,968.78 and 1,751.80 is: 2,628.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.72 : 4,968.78 = 1,751.80 : x
  2. Step 2: Convert to fraction form
    3,311.72/4,968.78 = 1,751.80/x
  3. Step 3: Cross multiply
    3,311.72x = 4,968.78 × 1,751.80
  4. Step 4: Simplify right side
    3,311.72x = 8,704,308.80
  5. Step 5: Solve for x
    x = 8,704,308.80/3,311.72
  6. Step 6: Final answer
    x = 2,628.33

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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.