Home / 2,766.76-3,821.43-2,019.58

Finding the Fourth Proportional to 2,766.76, 3,821.43 and 2,019.58

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Solution

The fourth proportional to 2,766.76, 3,821.43 and 2,019.58 is: 2,789.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.76 : 3,821.43 = 2,019.58 : x
  2. Step 2: Convert to fraction form
    2,766.76/3,821.43 = 2,019.58/x
  3. Step 3: Cross multiply
    2,766.76x = 3,821.43 × 2,019.58
  4. Step 4: Simplify right side
    2,766.76x = 7,717,683.60
  5. Step 5: Solve for x
    x = 7,717,683.60/2,766.76
  6. Step 6: Final answer
    x = 2,789.43

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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.