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Finding the Fourth Proportional to 7,104.66, 9,804.51 and 3,918.09

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Solution

The fourth proportional to 7,104.66, 9,804.51 and 3,918.09 is: 5,407.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,104.66 : 9,804.51 = 3,918.09 : x
  2. Step 2: Convert to fraction form
    7,104.66/9,804.51 = 3,918.09/x
  3. Step 3: Cross multiply
    7,104.66x = 9,804.51 × 3,918.09
  4. Step 4: Simplify right side
    7,104.66x = 38,414,952.59
  5. Step 5: Solve for x
    x = 38,414,952.59/7,104.66
  6. Step 6: Final answer
    x = 5,407.01

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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.