Home / 3,028.29-4,538.97-1,638.51

Finding the Fourth Proportional to 3,028.29, 4,538.97 and 1,638.51

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Solution

The fourth proportional to 3,028.29, 4,538.97 and 1,638.51 is: 2,455.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,028.29 : 4,538.97 = 1,638.51 : x
  2. Step 2: Convert to fraction form
    3,028.29/4,538.97 = 1,638.51/x
  3. Step 3: Cross multiply
    3,028.29x = 4,538.97 × 1,638.51
  4. Step 4: Simplify right side
    3,028.29x = 7,437,147.73
  5. Step 5: Solve for x
    x = 7,437,147.73/3,028.29
  6. Step 6: Final answer
    x = 2,455.89

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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.