Home / 2,219.09-3,328.81-1,294.74

Finding the Fourth Proportional to 2,219.09, 3,328.81 and 1,294.74

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Solution

The fourth proportional to 2,219.09, 3,328.81 and 1,294.74 is: 1,942.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.09 : 3,328.81 = 1,294.74 : x
  2. Step 2: Convert to fraction form
    2,219.09/3,328.81 = 1,294.74/x
  3. Step 3: Cross multiply
    2,219.09x = 3,328.81 × 1,294.74
  4. Step 4: Simplify right side
    2,219.09x = 4,309,940.22
  5. Step 5: Solve for x
    x = 4,309,940.22/2,219.09
  6. Step 6: Final answer
    x = 1,942.22

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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.