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Finding the Fourth Proportional to 3,511.67, 4,846.04 and 1,918.26

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Solution

The fourth proportional to 3,511.67, 4,846.04 and 1,918.26 is: 2,647.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.67 : 4,846.04 = 1,918.26 : x
  2. Step 2: Convert to fraction form
    3,511.67/4,846.04 = 1,918.26/x
  3. Step 3: Cross multiply
    3,511.67x = 4,846.04 × 1,918.26
  4. Step 4: Simplify right side
    3,511.67x = 9,295,955.10
  5. Step 5: Solve for x
    x = 9,295,955.10/3,511.67
  6. Step 6: Final answer
    x = 2,647.16

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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.