Home / 1,982.32-2,737.05-1,511.03

Finding the Fourth Proportional to 1,982.32, 2,737.05 and 1,511.03

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Solution

The fourth proportional to 1,982.32, 2,737.05 and 1,511.03 is: 2,086.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982.32 : 2,737.05 = 1,511.03 : x
  2. Step 2: Convert to fraction form
    1,982.32/2,737.05 = 1,511.03/x
  3. Step 3: Cross multiply
    1,982.32x = 2,737.05 × 1,511.03
  4. Step 4: Simplify right side
    1,982.32x = 4,135,764.66
  5. Step 5: Solve for x
    x = 4,135,764.66/1,982.32
  6. Step 6: Final answer
    x = 2,086.33

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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.