Home / 4,138.81-6,209.23-3,399.67

Finding the Fourth Proportional to 4,138.81, 6,209.23 and 3,399.67

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Solution

The fourth proportional to 4,138.81, 6,209.23 and 3,399.67 is: 5,100.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.81 : 6,209.23 = 3,399.67 : x
  2. Step 2: Convert to fraction form
    4,138.81/6,209.23 = 3,399.67/x
  3. Step 3: Cross multiply
    4,138.81x = 6,209.23 × 3,399.67
  4. Step 4: Simplify right side
    4,138.81x = 21,109,301.91
  5. Step 5: Solve for x
    x = 21,109,301.91/4,138.81
  6. Step 6: Final answer
    x = 5,100.34

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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.