Home / 3,171.05-4,738.23-2,289.37

Finding the Fourth Proportional to 3,171.05, 4,738.23 and 2,289.37

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Solution

The fourth proportional to 3,171.05, 4,738.23 and 2,289.37 is: 3,420.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.05 : 4,738.23 = 2,289.37 : x
  2. Step 2: Convert to fraction form
    3,171.05/4,738.23 = 2,289.37/x
  3. Step 3: Cross multiply
    3,171.05x = 4,738.23 × 2,289.37
  4. Step 4: Simplify right side
    3,171.05x = 10,847,526.48
  5. Step 5: Solve for x
    x = 10,847,526.48/3,171.05
  6. Step 6: Final answer
    x = 3,420.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.