Home / 6,622.68-9,918.88-3,162.36

Finding the Fourth Proportional to 6,622.68, 9,918.88 and 3,162.36

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Solution

The fourth proportional to 6,622.68, 9,918.88 and 3,162.36 is: 4,736.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.68 : 9,918.88 = 3,162.36 : x
  2. Step 2: Convert to fraction form
    6,622.68/9,918.88 = 3,162.36/x
  3. Step 3: Cross multiply
    6,622.68x = 9,918.88 × 3,162.36
  4. Step 4: Simplify right side
    6,622.68x = 31,367,069.36
  5. Step 5: Solve for x
    x = 31,367,069.36/6,622.68
  6. Step 6: Final answer
    x = 4,736.31

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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.