Home / 1,209.54-1,811.36-1,092.67

Finding the Fourth Proportional to 1,209.54, 1,811.36 and 1,092.67

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Solution

The fourth proportional to 1,209.54, 1,811.36 and 1,092.67 is: 1,636.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209.54 : 1,811.36 = 1,092.67 : x
  2. Step 2: Convert to fraction form
    1,209.54/1,811.36 = 1,092.67/x
  3. Step 3: Cross multiply
    1,209.54x = 1,811.36 × 1,092.67
  4. Step 4: Simplify right side
    1,209.54x = 1,979,218.73
  5. Step 5: Solve for x
    x = 1,979,218.73/1,209.54
  6. Step 6: Final answer
    x = 1,636.34

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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.