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Finding the Fourth Proportional to 2,254.51, 3,109.51 and 1,940.31

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Solution

The fourth proportional to 2,254.51, 3,109.51 and 1,940.31 is: 2,676.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.51 : 3,109.51 = 1,940.31 : x
  2. Step 2: Convert to fraction form
    2,254.51/3,109.51 = 1,940.31/x
  3. Step 3: Cross multiply
    2,254.51x = 3,109.51 × 1,940.31
  4. Step 4: Simplify right side
    2,254.51x = 6,033,388.10
  5. Step 5: Solve for x
    x = 6,033,388.10/2,254.51
  6. Step 6: Final answer
    x = 2,676.15

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.