Home / 2,766.70-4,149.96-1,122.76

Finding the Fourth Proportional to 2,766.70, 4,149.96 and 1,122.76

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Solution

The fourth proportional to 2,766.70, 4,149.96 and 1,122.76 is: 1,684.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.70 : 4,149.96 = 1,122.76 : x
  2. Step 2: Convert to fraction form
    2,766.70/4,149.96 = 1,122.76/x
  3. Step 3: Cross multiply
    2,766.70x = 4,149.96 × 1,122.76
  4. Step 4: Simplify right side
    2,766.70x = 4,659,409.09
  5. Step 5: Solve for x
    x = 4,659,409.09/2,766.70
  6. Step 6: Final answer
    x = 1,684.10

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1.5x scale

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.