Home / 4,429.92-6,645.60-2,121.48

Finding the Fourth Proportional to 4,429.92, 6,645.60 and 2,121.48

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Solution

The fourth proportional to 4,429.92, 6,645.60 and 2,121.48 is: 3,182.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,429.92 : 6,645.60 = 2,121.48 : x
  2. Step 2: Convert to fraction form
    4,429.92/6,645.60 = 2,121.48/x
  3. Step 3: Cross multiply
    4,429.92x = 6,645.60 × 2,121.48
  4. Step 4: Simplify right side
    4,429.92x = 14,098,507.49
  5. Step 5: Solve for x
    x = 14,098,507.49/4,429.92
  6. Step 6: Final answer
    x = 3,182.56

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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.