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Finding the Fourth Proportional to 1,604.09, 2,213.33 and 940.48

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Solution

The fourth proportional to 1,604.09, 2,213.33 and 940.48 is: 1,297.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,604.09 : 2,213.33 = 940.48 : x
  2. Step 2: Convert to fraction form
    1,604.09/2,213.33 = 940.48/x
  3. Step 3: Cross multiply
    1,604.09x = 2,213.33 × 940.48
  4. Step 4: Simplify right side
    1,604.09x = 2,081,582.36
  5. Step 5: Solve for x
    x = 2,081,582.36/1,604.09
  6. Step 6: Final answer
    x = 1,297.67

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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.