Home / 3,898.18-5,843.78-1,432.42

Finding the Fourth Proportional to 3,898.18, 5,843.78 and 1,432.42

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Solution

The fourth proportional to 3,898.18, 5,843.78 and 1,432.42 is: 2,147.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898.18 : 5,843.78 = 1,432.42 : x
  2. Step 2: Convert to fraction form
    3,898.18/5,843.78 = 1,432.42/x
  3. Step 3: Cross multiply
    3,898.18x = 5,843.78 × 1,432.42
  4. Step 4: Simplify right side
    3,898.18x = 8,370,747.35
  5. Step 5: Solve for x
    x = 8,370,747.35/3,898.18
  6. Step 6: Final answer
    x = 2,147.35

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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.