Home / 4,930.12-7,392.42-2,005

Finding the Fourth Proportional to 4,930.12, 7,392.42 and 2,005

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Solution

The fourth proportional to 4,930.12, 7,392.42 and 2,005 is: 3,006.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,930.12 : 7,392.42 = 2,005 : x
  2. Step 2: Convert to fraction form
    4,930.12/7,392.42 = 2,005/x
  3. Step 3: Cross multiply
    4,930.12x = 7,392.42 × 2,005
  4. Step 4: Simplify right side
    4,930.12x = 14,821,802.10
  5. Step 5: Solve for x
    x = 14,821,802.10/4,930.12
  6. Step 6: Final answer
    x = 3,006.38

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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.