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Finding the Fourth Proportional to 3,007, 4,511.22 and 955

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Solution

The fourth proportional to 3,007, 4,511.22 and 955 is: 1,432.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007 : 4,511.22 = 955 : x
  2. Step 2: Convert to fraction form
    3,007/4,511.22 = 955/x
  3. Step 3: Cross multiply
    3,007x = 4,511.22 × 955
  4. Step 4: Simplify right side
    3,007x = 4,308,215.10
  5. Step 5: Solve for x
    x = 4,308,215.10/3,007
  6. Step 6: Final answer
    x = 1,432.73

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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.