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Finding the Fourth Proportional to 6,112.67, 9,163.53 and 2,990.72

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Solution

The fourth proportional to 6,112.67, 9,163.53 and 2,990.72 is: 4,483.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,112.67 : 9,163.53 = 2,990.72 : x
  2. Step 2: Convert to fraction form
    6,112.67/9,163.53 = 2,990.72/x
  3. Step 3: Cross multiply
    6,112.67x = 9,163.53 × 2,990.72
  4. Step 4: Simplify right side
    6,112.67x = 27,405,575.35
  5. Step 5: Solve for x
    x = 27,405,575.35/6,112.67
  6. Step 6: Final answer
    x = 4,483.41

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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.