Home / 1,918.98-2,874.78-1,094.88

Finding the Fourth Proportional to 1,918.98, 2,874.78 and 1,094.88

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Solution

The fourth proportional to 1,918.98, 2,874.78 and 1,094.88 is: 1,640.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918.98 : 2,874.78 = 1,094.88 : x
  2. Step 2: Convert to fraction form
    1,918.98/2,874.78 = 1,094.88/x
  3. Step 3: Cross multiply
    1,918.98x = 2,874.78 × 1,094.88
  4. Step 4: Simplify right side
    1,918.98x = 3,147,539.13
  5. Step 5: Solve for x
    x = 3,147,539.13/1,918.98
  6. Step 6: Final answer
    x = 1,640.21

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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.