Home / 3,163.32-4,744.80-972.05

Finding the Fourth Proportional to 3,163.32, 4,744.80 and 972.05

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Solution

The fourth proportional to 3,163.32, 4,744.80 and 972.05 is: 1,458.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.32 : 4,744.80 = 972.05 : x
  2. Step 2: Convert to fraction form
    3,163.32/4,744.80 = 972.05/x
  3. Step 3: Cross multiply
    3,163.32x = 4,744.80 × 972.05
  4. Step 4: Simplify right side
    3,163.32x = 4,612,188.54
  5. Step 5: Solve for x
    x = 4,612,188.54/3,163.32
  6. Step 6: Final answer
    x = 1,458.02

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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.