Home / 2,766.98-3,821.74-2,019.74

Finding the Fourth Proportional to 2,766.98, 3,821.74 and 2,019.74

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Solution

The fourth proportional to 2,766.98, 3,821.74 and 2,019.74 is: 2,789.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.98 : 3,821.74 = 2,019.74 : x
  2. Step 2: Convert to fraction form
    2,766.98/3,821.74 = 2,019.74/x
  3. Step 3: Cross multiply
    2,766.98x = 3,821.74 × 2,019.74
  4. Step 4: Simplify right side
    2,766.98x = 7,718,921.15
  5. Step 5: Solve for x
    x = 7,718,921.15/2,766.98
  6. Step 6: Final answer
    x = 2,789.66

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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.