Home / 2,172.98-3,250.28-1,835.21

Finding the Fourth Proportional to 2,172.98, 3,250.28 and 1,835.21

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Solution

The fourth proportional to 2,172.98, 3,250.28 and 1,835.21 is: 2,745.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.98 : 3,250.28 = 1,835.21 : x
  2. Step 2: Convert to fraction form
    2,172.98/3,250.28 = 1,835.21/x
  3. Step 3: Cross multiply
    2,172.98x = 3,250.28 × 1,835.21
  4. Step 4: Simplify right side
    2,172.98x = 5,964,930.47
  5. Step 5: Solve for x
    x = 5,964,930.47/2,172.98
  6. Step 6: Final answer
    x = 2,745.05

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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.