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Finding the Fourth Proportional to 3,028.72, 4,542.54 and 836.90

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Solution

The fourth proportional to 3,028.72, 4,542.54 and 836.90 is: 1,255.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,028.72 : 4,542.54 = 836.90 : x
  2. Step 2: Convert to fraction form
    3,028.72/4,542.54 = 836.90/x
  3. Step 3: Cross multiply
    3,028.72x = 4,542.54 × 836.90
  4. Step 4: Simplify right side
    3,028.72x = 3,801,651.73
  5. Step 5: Solve for x
    x = 3,801,651.73/3,028.72
  6. Step 6: Final answer
    x = 1,255.20

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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.