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Finding the Fourth Proportional to 3,163.35, 4,745.01 and 972.02

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Solution

The fourth proportional to 3,163.35, 4,745.01 and 972.02 is: 1,458.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.35 : 4,745.01 = 972.02 : x
  2. Step 2: Convert to fraction form
    3,163.35/4,745.01 = 972.02/x
  3. Step 3: Cross multiply
    3,163.35x = 4,745.01 × 972.02
  4. Step 4: Simplify right side
    3,163.35x = 4,612,244.62
  5. Step 5: Solve for x
    x = 4,612,244.62/3,163.35
  6. Step 6: Final answer
    x = 1,458.03

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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.