Home / 6,638.68-9,161.33-3,654.56

Finding the Fourth Proportional to 6,638.68, 9,161.33 and 3,654.56

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Solution

The fourth proportional to 6,638.68, 9,161.33 and 3,654.56 is: 5,043.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,638.68 : 9,161.33 = 3,654.56 : x
  2. Step 2: Convert to fraction form
    6,638.68/9,161.33 = 3,654.56/x
  3. Step 3: Cross multiply
    6,638.68x = 9,161.33 × 3,654.56
  4. Step 4: Simplify right side
    6,638.68x = 33,480,634.80
  5. Step 5: Solve for x
    x = 33,480,634.80/6,638.68
  6. Step 6: Final answer
    x = 5,043.27

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1.5x scale

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.