Home / 3,438.45-4,743.97-2,021.68

Finding the Fourth Proportional to 3,438.45, 4,743.97 and 2,021.68

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Solution

The fourth proportional to 3,438.45, 4,743.97 and 2,021.68 is: 2,789.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.45 : 4,743.97 = 2,021.68 : x
  2. Step 2: Convert to fraction form
    3,438.45/4,743.97 = 2,021.68/x
  3. Step 3: Cross multiply
    3,438.45x = 4,743.97 × 2,021.68
  4. Step 4: Simplify right side
    3,438.45x = 9,590,789.27
  5. Step 5: Solve for x
    x = 9,590,789.27/3,438.45
  6. Step 6: Final answer
    x = 2,789.28

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1.5x scale

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.