Home / 6,660.09-9,991.26-2,764.80

Finding the Fourth Proportional to 6,660.09, 9,991.26 and 2,764.80

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Solution

The fourth proportional to 6,660.09, 9,991.26 and 2,764.80 is: 4,147.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.09 : 9,991.26 = 2,764.80 : x
  2. Step 2: Convert to fraction form
    6,660.09/9,991.26 = 2,764.80/x
  3. Step 3: Cross multiply
    6,660.09x = 9,991.26 × 2,764.80
  4. Step 4: Simplify right side
    6,660.09x = 27,623,835.65
  5. Step 5: Solve for x
    x = 27,623,835.65/6,660.09
  6. Step 6: Final answer
    x = 4,147.67

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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.