Home / 4,219.80-6,331.06-2,028.68

Finding the Fourth Proportional to 4,219.80, 6,331.06 and 2,028.68

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Solution

The fourth proportional to 4,219.80, 6,331.06 and 2,028.68 is: 3,043.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,219.80 : 6,331.06 = 2,028.68 : x
  2. Step 2: Convert to fraction form
    4,219.80/6,331.06 = 2,028.68/x
  3. Step 3: Cross multiply
    4,219.80x = 6,331.06 × 2,028.68
  4. Step 4: Simplify right side
    4,219.80x = 12,843,694.80
  5. Step 5: Solve for x
    x = 12,843,694.80/4,219.80
  6. Step 6: Final answer
    x = 3,043.67

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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.