Home / 6,609.90-9,121.73-3,625.80

Finding the Fourth Proportional to 6,609.90, 9,121.73 and 3,625.80

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Solution

The fourth proportional to 6,609.90, 9,121.73 and 3,625.80 is: 5,003.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,609.90 : 9,121.73 = 3,625.80 : x
  2. Step 2: Convert to fraction form
    6,609.90/9,121.73 = 3,625.80/x
  3. Step 3: Cross multiply
    6,609.90x = 9,121.73 × 3,625.80
  4. Step 4: Simplify right side
    6,609.90x = 33,073,568.63
  5. Step 5: Solve for x
    x = 33,073,568.63/6,609.90
  6. Step 6: Final answer
    x = 5,003.64

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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.