Home / 2,766.75-3,818.17-1,507.80

Finding the Fourth Proportional to 2,766.75, 3,818.17 and 1,507.80

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Solution

The fourth proportional to 2,766.75, 3,818.17 and 1,507.80 is: 2,080.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.75 : 3,818.17 = 1,507.80 : x
  2. Step 2: Convert to fraction form
    2,766.75/3,818.17 = 1,507.80/x
  3. Step 3: Cross multiply
    2,766.75x = 3,818.17 × 1,507.80
  4. Step 4: Simplify right side
    2,766.75x = 5,757,036.73
  5. Step 5: Solve for x
    x = 5,757,036.73/2,766.75
  6. Step 6: Final answer
    x = 2,080.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.