Home / 1,211.22-1,808.12-1,162.62

Finding the Fourth Proportional to 1,211.22, 1,808.12 and 1,162.62

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Solution

The fourth proportional to 1,211.22, 1,808.12 and 1,162.62 is: 1,735.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211.22 : 1,808.12 = 1,162.62 : x
  2. Step 2: Convert to fraction form
    1,211.22/1,808.12 = 1,162.62/x
  3. Step 3: Cross multiply
    1,211.22x = 1,808.12 × 1,162.62
  4. Step 4: Simplify right side
    1,211.22x = 2,102,150.66
  5. Step 5: Solve for x
    x = 2,102,150.66/1,211.22
  6. Step 6: Final answer
    x = 1,735.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.