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Finding the Fourth Proportional to 3,028.78, 4,544.79 and 2,974.51

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Solution

The fourth proportional to 3,028.78, 4,544.79 and 2,974.51 is: 4,463.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,028.78 : 4,544.79 = 2,974.51 : x
  2. Step 2: Convert to fraction form
    3,028.78/4,544.79 = 2,974.51/x
  3. Step 3: Cross multiply
    3,028.78x = 4,544.79 × 2,974.51
  4. Step 4: Simplify right side
    3,028.78x = 13,518,523.30
  5. Step 5: Solve for x
    x = 13,518,523.30/3,028.78
  6. Step 6: Final answer
    x = 4,463.36

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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.