Home / 4,292.19-6,429.78-3,988.44

Finding the Fourth Proportional to 4,292.19, 6,429.78 and 3,988.44

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Solution

The fourth proportional to 4,292.19, 6,429.78 and 3,988.44 is: 5,974.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,292.19 : 6,429.78 = 3,988.44 : x
  2. Step 2: Convert to fraction form
    4,292.19/6,429.78 = 3,988.44/x
  3. Step 3: Cross multiply
    4,292.19x = 6,429.78 × 3,988.44
  4. Step 4: Simplify right side
    4,292.19x = 25,644,791.74
  5. Step 5: Solve for x
    x = 25,644,791.74/4,292.19
  6. Step 6: Final answer
    x = 5,974.76

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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.