Home / 6,622.12-9,934.62-2,005

Finding the Fourth Proportional to 6,622.12, 9,934.62 and 2,005

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Solution

The fourth proportional to 6,622.12, 9,934.62 and 2,005 is: 3,007.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.12 : 9,934.62 = 2,005 : x
  2. Step 2: Convert to fraction form
    6,622.12/9,934.62 = 2,005/x
  3. Step 3: Cross multiply
    6,622.12x = 9,934.62 × 2,005
  4. Step 4: Simplify right side
    6,622.12x = 19,918,913.10
  5. Step 5: Solve for x
    x = 19,918,913.10/6,622.12
  6. Step 6: Final answer
    x = 3,007.94

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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.