Home / 4,163.70-6,243.18-1,389.60

Finding the Fourth Proportional to 4,163.70, 6,243.18 and 1,389.60

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Solution

The fourth proportional to 4,163.70, 6,243.18 and 1,389.60 is: 2,083.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,163.70 : 6,243.18 = 1,389.60 : x
  2. Step 2: Convert to fraction form
    4,163.70/6,243.18 = 1,389.60/x
  3. Step 3: Cross multiply
    4,163.70x = 6,243.18 × 1,389.60
  4. Step 4: Simplify right side
    4,163.70x = 8,675,522.93
  5. Step 5: Solve for x
    x = 8,675,522.93/4,163.70
  6. Step 6: Final answer
    x = 2,083.61

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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.