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Finding the Fourth Proportional to 7,163.66, 10,745.35 and 2,945.99

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Solution

The fourth proportional to 7,163.66, 10,745.35 and 2,945.99 is: 4,418.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,163.66 : 10,745.35 = 2,945.99 : x
  2. Step 2: Convert to fraction form
    7,163.66/10,745.35 = 2,945.99/x
  3. Step 3: Cross multiply
    7,163.66x = 10,745.35 × 2,945.99
  4. Step 4: Simplify right side
    7,163.66x = 31,655,693.65
  5. Step 5: Solve for x
    x = 31,655,693.65/7,163.66
  6. Step 6: Final answer
    x = 4,418.93

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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.