Home / 1,982.37-2,735.56-1,098.12

Finding the Fourth Proportional to 1,982.37, 2,735.56 and 1,098.12

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Solution

The fourth proportional to 1,982.37, 2,735.56 and 1,098.12 is: 1,515.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982.37 : 2,735.56 = 1,098.12 : x
  2. Step 2: Convert to fraction form
    1,982.37/2,735.56 = 1,098.12/x
  3. Step 3: Cross multiply
    1,982.37x = 2,735.56 × 1,098.12
  4. Step 4: Simplify right side
    1,982.37x = 3,003,967.66
  5. Step 5: Solve for x
    x = 3,003,967.66/1,982.37
  6. Step 6: Final answer
    x = 1,515.34

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1.5x scale

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.