Home / 6,918.88-10,378.22-3,219.04

Finding the Fourth Proportional to 6,918.88, 10,378.22 and 3,219.04

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Solution

The fourth proportional to 6,918.88, 10,378.22 and 3,219.04 is: 4,828.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.88 : 10,378.22 = 3,219.04 : x
  2. Step 2: Convert to fraction form
    6,918.88/10,378.22 = 3,219.04/x
  3. Step 3: Cross multiply
    6,918.88x = 10,378.22 × 3,219.04
  4. Step 4: Simplify right side
    6,918.88x = 33,407,837.32
  5. Step 5: Solve for x
    x = 33,407,837.32/6,918.88
  6. Step 6: Final answer
    x = 4,828.51

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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.