Home / 3,429.72-5,143.26-1,238.04

Finding the Fourth Proportional to 3,429.72, 5,143.26 and 1,238.04

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Solution

The fourth proportional to 3,429.72, 5,143.26 and 1,238.04 is: 1,856.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.72 : 5,143.26 = 1,238.04 : x
  2. Step 2: Convert to fraction form
    3,429.72/5,143.26 = 1,238.04/x
  3. Step 3: Cross multiply
    3,429.72x = 5,143.26 × 1,238.04
  4. Step 4: Simplify right side
    3,429.72x = 6,367,561.61
  5. Step 5: Solve for x
    x = 6,367,561.61/3,429.72
  6. Step 6: Final answer
    x = 1,856.58

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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.