Home / 4,185.75-6,280.79-2,133.75

Finding the Fourth Proportional to 4,185.75, 6,280.79 and 2,133.75

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Solution

The fourth proportional to 4,185.75, 6,280.79 and 2,133.75 is: 3,201.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,185.75 : 6,280.79 = 2,133.75 : x
  2. Step 2: Convert to fraction form
    4,185.75/6,280.79 = 2,133.75/x
  3. Step 3: Cross multiply
    4,185.75x = 6,280.79 × 2,133.75
  4. Step 4: Simplify right side
    4,185.75x = 13,401,624.99
  5. Step 5: Solve for x
    x = 13,401,624.99/4,185.75
  6. Step 6: Final answer
    x = 3,201.73

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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.