Home / 2,022.60-3,032.26-789.78

Finding the Fourth Proportional to 2,022.60, 3,032.26 and 789.78

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Solution

The fourth proportional to 2,022.60, 3,032.26 and 789.78 is: 1,184.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,022.60 : 3,032.26 = 789.78 : x
  2. Step 2: Convert to fraction form
    2,022.60/3,032.26 = 789.78/x
  3. Step 3: Cross multiply
    2,022.60x = 3,032.26 × 789.78
  4. Step 4: Simplify right side
    2,022.60x = 2,394,818.30
  5. Step 5: Solve for x
    x = 2,394,818.30/2,022.60
  6. Step 6: Final answer
    x = 1,184.03

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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.