Home / 3,636.26-5,453.10-1,879.40

Finding the Fourth Proportional to 3,636.26, 5,453.10 and 1,879.40

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Solution

The fourth proportional to 3,636.26, 5,453.10 and 1,879.40 is: 2,818.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,636.26 : 5,453.10 = 1,879.40 : x
  2. Step 2: Convert to fraction form
    3,636.26/5,453.10 = 1,879.40/x
  3. Step 3: Cross multiply
    3,636.26x = 5,453.10 × 1,879.40
  4. Step 4: Simplify right side
    3,636.26x = 10,248,556.14
  5. Step 5: Solve for x
    x = 10,248,556.14/3,636.26
  6. Step 6: Final answer
    x = 2,818.43

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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.