Home / 4,143.05-6,213.92-1,220.67

Finding the Fourth Proportional to 4,143.05, 6,213.92 and 1,220.67

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Solution

The fourth proportional to 4,143.05, 6,213.92 and 1,220.67 is: 1,830.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,143.05 : 6,213.92 = 1,220.67 : x
  2. Step 2: Convert to fraction form
    4,143.05/6,213.92 = 1,220.67/x
  3. Step 3: Cross multiply
    4,143.05x = 6,213.92 × 1,220.67
  4. Step 4: Simplify right side
    4,143.05x = 7,585,139.62
  5. Step 5: Solve for x
    x = 7,585,139.62/4,143.05
  6. Step 6: Final answer
    x = 1,830.81

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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.