Home / 3,453.21-4,763.91-2,126.43

Finding the Fourth Proportional to 3,453.21, 4,763.91 and 2,126.43

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Solution

The fourth proportional to 3,453.21, 4,763.91 and 2,126.43 is: 2,933.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453.21 : 4,763.91 = 2,126.43 : x
  2. Step 2: Convert to fraction form
    3,453.21/4,763.91 = 2,126.43/x
  3. Step 3: Cross multiply
    3,453.21x = 4,763.91 × 2,126.43
  4. Step 4: Simplify right side
    3,453.21x = 10,130,121.14
  5. Step 5: Solve for x
    x = 10,130,121.14/3,453.21
  6. Step 6: Final answer
    x = 2,933.54

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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.