Home / 3,661.12-5,486.62-3,172.96

Finding the Fourth Proportional to 3,661.12, 5,486.62 and 3,172.96

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Solution

The fourth proportional to 3,661.12, 5,486.62 and 3,172.96 is: 4,755.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,661.12 : 5,486.62 = 3,172.96 : x
  2. Step 2: Convert to fraction form
    3,661.12/5,486.62 = 3,172.96/x
  3. Step 3: Cross multiply
    3,661.12x = 5,486.62 × 3,172.96
  4. Step 4: Simplify right side
    3,661.12x = 17,408,825.80
  5. Step 5: Solve for x
    x = 17,408,825.80/3,661.12
  6. Step 6: Final answer
    x = 4,755.05

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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.