Home / 3,429.42-5,144.54-1,239.18

Finding the Fourth Proportional to 3,429.42, 5,144.54 and 1,239.18

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Solution

The fourth proportional to 3,429.42, 5,144.54 and 1,239.18 is: 1,858.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.42 : 5,144.54 = 1,239.18 : x
  2. Step 2: Convert to fraction form
    3,429.42/5,144.54 = 1,239.18/x
  3. Step 3: Cross multiply
    3,429.42x = 5,144.54 × 1,239.18
  4. Step 4: Simplify right side
    3,429.42x = 6,375,004.88
  5. Step 5: Solve for x
    x = 6,375,004.88/3,429.42
  6. Step 6: Final answer
    x = 1,858.92

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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.