Home / 1,693.44-2,336.85-985.41

Finding the Fourth Proportional to 1,693.44, 2,336.85 and 985.41

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Solution

The fourth proportional to 1,693.44, 2,336.85 and 985.41 is: 1,359.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693.44 : 2,336.85 = 985.41 : x
  2. Step 2: Convert to fraction form
    1,693.44/2,336.85 = 985.41/x
  3. Step 3: Cross multiply
    1,693.44x = 2,336.85 × 985.41
  4. Step 4: Simplify right side
    1,693.44x = 2,302,755.36
  5. Step 5: Solve for x
    x = 2,302,755.36/1,693.44
  6. Step 6: Final answer
    x = 1,359.81

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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.