Home / 6,609.21-9,120.64-3,625.07

Finding the Fourth Proportional to 6,609.21, 9,120.64 and 3,625.07

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Solution

The fourth proportional to 6,609.21, 9,120.64 and 3,625.07 is: 5,002.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,609.21 : 9,120.64 = 3,625.07 : x
  2. Step 2: Convert to fraction form
    6,609.21/9,120.64 = 3,625.07/x
  3. Step 3: Cross multiply
    6,609.21x = 9,120.64 × 3,625.07
  4. Step 4: Simplify right side
    6,609.21x = 33,062,958.44
  5. Step 5: Solve for x
    x = 33,062,958.44/6,609.21
  6. Step 6: Final answer
    x = 5,002.56

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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.