Home / 7,850.21-11,777.37-2,586.02

Finding the Fourth Proportional to 7,850.21, 11,777.37 and 2,586.02

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Solution

The fourth proportional to 7,850.21, 11,777.37 and 2,586.02 is: 3,879.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,850.21 : 11,777.37 = 2,586.02 : x
  2. Step 2: Convert to fraction form
    7,850.21/11,777.37 = 2,586.02/x
  3. Step 3: Cross multiply
    7,850.21x = 11,777.37 × 2,586.02
  4. Step 4: Simplify right side
    7,850.21x = 30,456,543.81
  5. Step 5: Solve for x
    x = 30,456,543.81/7,850.21
  6. Step 6: Final answer
    x = 3,879.71

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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.