Home / 7,739.76-11,611.29-2,194.80

Finding the Fourth Proportional to 7,739.76, 11,611.29 and 2,194.80

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Solution

The fourth proportional to 7,739.76, 11,611.29 and 2,194.80 is: 3,292.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,739.76 : 11,611.29 = 2,194.80 : x
  2. Step 2: Convert to fraction form
    7,739.76/11,611.29 = 2,194.80/x
  3. Step 3: Cross multiply
    7,739.76x = 11,611.29 × 2,194.80
  4. Step 4: Simplify right side
    7,739.76x = 25,484,459.29
  5. Step 5: Solve for x
    x = 25,484,459.29/7,739.76
  6. Step 6: Final answer
    x = 3,292.67

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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.