Home / 1,233.68-1,852.34-1,211.81

Finding the Fourth Proportional to 1,233.68, 1,852.34 and 1,211.81

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Solution

The fourth proportional to 1,233.68, 1,852.34 and 1,211.81 is: 1,819.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,233.68 : 1,852.34 = 1,211.81 : x
  2. Step 2: Convert to fraction form
    1,233.68/1,852.34 = 1,211.81/x
  3. Step 3: Cross multiply
    1,233.68x = 1,852.34 × 1,211.81
  4. Step 4: Simplify right side
    1,233.68x = 2,244,668.81
  5. Step 5: Solve for x
    x = 2,244,668.81/1,233.68
  6. Step 6: Final answer
    x = 1,819.50

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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.