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Finding the Fourth Proportional to 3,892.98, 5,844.39 and 3,122.58

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Solution

The fourth proportional to 3,892.98, 5,844.39 and 3,122.58 is: 4,687.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,892.98 : 5,844.39 = 3,122.58 : x
  2. Step 2: Convert to fraction form
    3,892.98/5,844.39 = 3,122.58/x
  3. Step 3: Cross multiply
    3,892.98x = 5,844.39 × 3,122.58
  4. Step 4: Simplify right side
    3,892.98x = 18,249,575.33
  5. Step 5: Solve for x
    x = 18,249,575.33/3,892.98
  6. Step 6: Final answer
    x = 4,687.82

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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.