Home / 2,144.26-3,218.20-2,128.06

Finding the Fourth Proportional to 2,144.26, 3,218.20 and 2,128.06

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Solution

The fourth proportional to 2,144.26, 3,218.20 and 2,128.06 is: 3,193.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,144.26 : 3,218.20 = 2,128.06 : x
  2. Step 2: Convert to fraction form
    2,144.26/3,218.20 = 2,128.06/x
  3. Step 3: Cross multiply
    2,144.26x = 3,218.20 × 2,128.06
  4. Step 4: Simplify right side
    2,144.26x = 6,848,522.69
  5. Step 5: Solve for x
    x = 6,848,522.69/2,144.26
  6. Step 6: Final answer
    x = 3,193.89

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1.5x scale

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.