Home / 1,982.38-2,735.48-1,098.09

Finding the Fourth Proportional to 1,982.38, 2,735.48 and 1,098.09

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Solution

The fourth proportional to 1,982.38, 2,735.48 and 1,098.09 is: 1,515.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982.38 : 2,735.48 = 1,098.09 : x
  2. Step 2: Convert to fraction form
    1,982.38/2,735.48 = 1,098.09/x
  3. Step 3: Cross multiply
    1,982.38x = 2,735.48 × 1,098.09
  4. Step 4: Simplify right side
    1,982.38x = 3,003,803.23
  5. Step 5: Solve for x
    x = 3,003,803.23/1,982.38
  6. Step 6: Final answer
    x = 1,515.25

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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.