Home / 3,179.56-4,770.26-1,329.72

Finding the Fourth Proportional to 3,179.56, 4,770.26 and 1,329.72

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Solution

The fourth proportional to 3,179.56, 4,770.26 and 1,329.72 is: 1,994.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.56 : 4,770.26 = 1,329.72 : x
  2. Step 2: Convert to fraction form
    3,179.56/4,770.26 = 1,329.72/x
  3. Step 3: Cross multiply
    3,179.56x = 4,770.26 × 1,329.72
  4. Step 4: Simplify right side
    3,179.56x = 6,343,110.13
  5. Step 5: Solve for x
    x = 6,343,110.13/3,179.56
  6. Step 6: Final answer
    x = 1,994.96

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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.