Home / 2,766.80-4,150.51-1,123.11

Finding the Fourth Proportional to 2,766.80, 4,150.51 and 1,123.11

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Solution

The fourth proportional to 2,766.80, 4,150.51 and 1,123.11 is: 1,684.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.80 : 4,150.51 = 1,123.11 : x
  2. Step 2: Convert to fraction form
    2,766.80/4,150.51 = 1,123.11/x
  3. Step 3: Cross multiply
    2,766.80x = 4,150.51 × 1,123.11
  4. Step 4: Simplify right side
    2,766.80x = 4,661,476.48
  5. Step 5: Solve for x
    x = 4,661,476.48/2,766.80
  6. Step 6: Final answer
    x = 1,684.79

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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.