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Finding the Fourth Proportional to 7,104.78, 9,804.65 and 3,961.17

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Solution

The fourth proportional to 7,104.78, 9,804.65 and 3,961.17 is: 5,466.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,104.78 : 9,804.65 = 3,961.17 : x
  2. Step 2: Convert to fraction form
    7,104.78/9,804.65 = 3,961.17/x
  3. Step 3: Cross multiply
    7,104.78x = 9,804.65 × 3,961.17
  4. Step 4: Simplify right side
    7,104.78x = 38,837,865.63
  5. Step 5: Solve for x
    x = 38,837,865.63/7,104.78
  6. Step 6: Final answer
    x = 5,466.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.