Home / 3,171.42-4,756.50-979.62

Finding the Fourth Proportional to 3,171.42, 4,756.50 and 979.62

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Solution

The fourth proportional to 3,171.42, 4,756.50 and 979.62 is: 1,469.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.42 : 4,756.50 = 979.62 : x
  2. Step 2: Convert to fraction form
    3,171.42/4,756.50 = 979.62/x
  3. Step 3: Cross multiply
    3,171.42x = 4,756.50 × 979.62
  4. Step 4: Simplify right side
    3,171.42x = 4,659,562.53
  5. Step 5: Solve for x
    x = 4,659,562.53/3,171.42
  6. Step 6: Final answer
    x = 1,469.24

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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.