Home / 1,906.58-2,860.40-1,127.27

Finding the Fourth Proportional to 1,906.58, 2,860.40 and 1,127.27

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Solution

The fourth proportional to 1,906.58, 2,860.40 and 1,127.27 is: 1,691.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.58 : 2,860.40 = 1,127.27 : x
  2. Step 2: Convert to fraction form
    1,906.58/2,860.40 = 1,127.27/x
  3. Step 3: Cross multiply
    1,906.58x = 2,860.40 × 1,127.27
  4. Step 4: Simplify right side
    1,906.58x = 3,224,431.62
  5. Step 5: Solve for x
    x = 3,224,431.62/1,906.58
  6. Step 6: Final answer
    x = 1,691.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.