Home / 5,085.72-7,629.54-2,163.96

Finding the Fourth Proportional to 5,085.72, 7,629.54 and 2,163.96

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Solution

The fourth proportional to 5,085.72, 7,629.54 and 2,163.96 is: 3,246.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,085.72 : 7,629.54 = 2,163.96 : x
  2. Step 2: Convert to fraction form
    5,085.72/7,629.54 = 2,163.96/x
  3. Step 3: Cross multiply
    5,085.72x = 7,629.54 × 2,163.96
  4. Step 4: Simplify right side
    5,085.72x = 16,510,019.38
  5. Step 5: Solve for x
    x = 16,510,019.38/5,085.72
  6. Step 6: Final answer
    x = 3,246.35

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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.