Home / 3,261.84-4,891.77-2,172.03

Finding the Fourth Proportional to 3,261.84, 4,891.77 and 2,172.03

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Solution

The fourth proportional to 3,261.84, 4,891.77 and 2,172.03 is: 3,257.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.84 : 4,891.77 = 2,172.03 : x
  2. Step 2: Convert to fraction form
    3,261.84/4,891.77 = 2,172.03/x
  3. Step 3: Cross multiply
    3,261.84x = 4,891.77 × 2,172.03
  4. Step 4: Simplify right side
    3,261.84x = 10,625,071.19
  5. Step 5: Solve for x
    x = 10,625,071.19/3,261.84
  6. Step 6: Final answer
    x = 3,257.39

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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.