Home / 3,179.76-4,770.39-1,329.84

Finding the Fourth Proportional to 3,179.76, 4,770.39 and 1,329.84

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Solution

The fourth proportional to 3,179.76, 4,770.39 and 1,329.84 is: 1,995.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.76 : 4,770.39 = 1,329.84 : x
  2. Step 2: Convert to fraction form
    3,179.76/4,770.39 = 1,329.84/x
  3. Step 3: Cross multiply
    3,179.76x = 4,770.39 × 1,329.84
  4. Step 4: Simplify right side
    3,179.76x = 6,343,873.84
  5. Step 5: Solve for x
    x = 6,343,873.84/3,179.76
  6. Step 6: Final answer
    x = 1,995.08

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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.