Home / 7,619.94-11,427.48-2,940.30

Finding the Fourth Proportional to 7,619.94, 11,427.48 and 2,940.30

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Solution

The fourth proportional to 7,619.94, 11,427.48 and 2,940.30 is: 4,409.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.94 : 11,427.48 = 2,940.30 : x
  2. Step 2: Convert to fraction form
    7,619.94/11,427.48 = 2,940.30/x
  3. Step 3: Cross multiply
    7,619.94x = 11,427.48 × 2,940.30
  4. Step 4: Simplify right side
    7,619.94x = 33,600,219.44
  5. Step 5: Solve for x
    x = 33,600,219.44/7,619.94
  6. Step 6: Final answer
    x = 4,409.51

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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.