Home / 3,438.20-4,743.63-2,021.43

Finding the Fourth Proportional to 3,438.20, 4,743.63 and 2,021.43

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Solution

The fourth proportional to 3,438.20, 4,743.63 and 2,021.43 is: 2,788.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.20 : 4,743.63 = 2,021.43 : x
  2. Step 2: Convert to fraction form
    3,438.20/4,743.63 = 2,021.43/x
  3. Step 3: Cross multiply
    3,438.20x = 4,743.63 × 2,021.43
  4. Step 4: Simplify right side
    3,438.20x = 9,588,905.88
  5. Step 5: Solve for x
    x = 9,588,905.88/3,438.20
  6. Step 6: Final answer
    x = 2,788.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.