Home / 3,180.26-4,770.70-1,331.03

Finding the Fourth Proportional to 3,180.26, 4,770.70 and 1,331.03

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Solution

The fourth proportional to 3,180.26, 4,770.70 and 1,331.03 is: 1,996.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.26 : 4,770.70 = 1,331.03 : x
  2. Step 2: Convert to fraction form
    3,180.26/4,770.70 = 1,331.03/x
  3. Step 3: Cross multiply
    3,180.26x = 4,770.70 × 1,331.03
  4. Step 4: Simplify right side
    3,180.26x = 6,349,953.42
  5. Step 5: Solve for x
    x = 6,349,953.42/3,180.26
  6. Step 6: Final answer
    x = 1,996.68

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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.