Home / 6,120.80-9,180.96-4,266.56

Finding the Fourth Proportional to 6,120.80, 9,180.96 and 4,266.56

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Solution

The fourth proportional to 6,120.80, 9,180.96 and 4,266.56 is: 6,399.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,120.80 : 9,180.96 = 4,266.56 : x
  2. Step 2: Convert to fraction form
    6,120.80/9,180.96 = 4,266.56/x
  3. Step 3: Cross multiply
    6,120.80x = 9,180.96 × 4,266.56
  4. Step 4: Simplify right side
    6,120.80x = 39,171,116.70
  5. Step 5: Solve for x
    x = 39,171,116.70/6,120.80
  6. Step 6: Final answer
    x = 6,399.67

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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.