Home / 2,211.56-3,051.99-1,216.89

Finding the Fourth Proportional to 2,211.56, 3,051.99 and 1,216.89

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Solution

The fourth proportional to 2,211.56, 3,051.99 and 1,216.89 is: 1,679.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.56 : 3,051.99 = 1,216.89 : x
  2. Step 2: Convert to fraction form
    2,211.56/3,051.99 = 1,216.89/x
  3. Step 3: Cross multiply
    2,211.56x = 3,051.99 × 1,216.89
  4. Step 4: Simplify right side
    2,211.56x = 3,713,936.11
  5. Step 5: Solve for x
    x = 3,713,936.11/2,211.56
  6. Step 6: Final answer
    x = 1,679.33

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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.