Home / 3,828.12-5,743.68-1,636.80

Finding the Fourth Proportional to 3,828.12, 5,743.68 and 1,636.80

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Solution

The fourth proportional to 3,828.12, 5,743.68 and 1,636.80 is: 2,455.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.12 : 5,743.68 = 1,636.80 : x
  2. Step 2: Convert to fraction form
    3,828.12/5,743.68 = 1,636.80/x
  3. Step 3: Cross multiply
    3,828.12x = 5,743.68 × 1,636.80
  4. Step 4: Simplify right side
    3,828.12x = 9,401,255.42
  5. Step 5: Solve for x
    x = 9,401,255.42/3,828.12
  6. Step 6: Final answer
    x = 2,455.84

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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.