Home / 2,692.31-4,040.01-1,211.09

Finding the Fourth Proportional to 2,692.31, 4,040.01 and 1,211.09

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Solution

The fourth proportional to 2,692.31, 4,040.01 and 1,211.09 is: 1,817.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,692.31 : 4,040.01 = 1,211.09 : x
  2. Step 2: Convert to fraction form
    2,692.31/4,040.01 = 1,211.09/x
  3. Step 3: Cross multiply
    2,692.31x = 4,040.01 × 1,211.09
  4. Step 4: Simplify right side
    2,692.31x = 4,892,795.51
  5. Step 5: Solve for x
    x = 4,892,795.51/2,692.31
  6. Step 6: Final answer
    x = 1,817.33

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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.