Home / 1,768.44-2,440.40-982.48

Finding the Fourth Proportional to 1,768.44, 2,440.40 and 982.48

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Solution

The fourth proportional to 1,768.44, 2,440.40 and 982.48 is: 1,355.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.44 : 2,440.40 = 982.48 : x
  2. Step 2: Convert to fraction form
    1,768.44/2,440.40 = 982.48/x
  3. Step 3: Cross multiply
    1,768.44x = 2,440.40 × 982.48
  4. Step 4: Simplify right side
    1,768.44x = 2,397,644.19
  5. Step 5: Solve for x
    x = 2,397,644.19/1,768.44
  6. Step 6: Final answer
    x = 1,355.80

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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.