Home / 3,429.08-5,143.89-1,238.03

Finding the Fourth Proportional to 3,429.08, 5,143.89 and 1,238.03

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Solution

The fourth proportional to 3,429.08, 5,143.89 and 1,238.03 is: 1,857.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.08 : 5,143.89 = 1,238.03 : x
  2. Step 2: Convert to fraction form
    3,429.08/5,143.89 = 1,238.03/x
  3. Step 3: Cross multiply
    3,429.08x = 5,143.89 × 1,238.03
  4. Step 4: Simplify right side
    3,429.08x = 6,368,290.14
  5. Step 5: Solve for x
    x = 6,368,290.14/3,429.08
  6. Step 6: Final answer
    x = 1,857.14

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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.