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Finding the Fourth Proportional to 2,250.66, 3,106.14 and 1,918.98

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Solution

The fourth proportional to 2,250.66, 3,106.14 and 1,918.98 is: 2,648.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,250.66 : 3,106.14 = 1,918.98 : x
  2. Step 2: Convert to fraction form
    2,250.66/3,106.14 = 1,918.98/x
  3. Step 3: Cross multiply
    2,250.66x = 3,106.14 × 1,918.98
  4. Step 4: Simplify right side
    2,250.66x = 5,960,620.54
  5. Step 5: Solve for x
    x = 5,960,620.54/2,250.66
  6. Step 6: Final answer
    x = 2,648.39

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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.