Home / 1,889.74-2,607.66-1,227.16

Finding the Fourth Proportional to 1,889.74, 2,607.66 and 1,227.16

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Solution

The fourth proportional to 1,889.74, 2,607.66 and 1,227.16 is: 1,693.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.74 : 2,607.66 = 1,227.16 : x
  2. Step 2: Convert to fraction form
    1,889.74/2,607.66 = 1,227.16/x
  3. Step 3: Cross multiply
    1,889.74x = 2,607.66 × 1,227.16
  4. Step 4: Simplify right side
    1,889.74x = 3,200,016.05
  5. Step 5: Solve for x
    x = 3,200,016.05/1,889.74
  6. Step 6: Final answer
    x = 1,693.36

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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.