Home / 1,982.21-2,735.54-1,098.02

Finding the Fourth Proportional to 1,982.21, 2,735.54 and 1,098.02

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Solution

The fourth proportional to 1,982.21, 2,735.54 and 1,098.02 is: 1,515.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982.21 : 2,735.54 = 1,098.02 : x
  2. Step 2: Convert to fraction form
    1,982.21/2,735.54 = 1,098.02/x
  3. Step 3: Cross multiply
    1,982.21x = 2,735.54 × 1,098.02
  4. Step 4: Simplify right side
    1,982.21x = 3,003,666.70
  5. Step 5: Solve for x
    x = 3,003,666.70/1,982.21
  6. Step 6: Final answer
    x = 1,515.31

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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.