Home / 2,918.36-4,376.70-1,274.54

Finding the Fourth Proportional to 2,918.36, 4,376.70 and 1,274.54

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Solution

The fourth proportional to 2,918.36, 4,376.70 and 1,274.54 is: 1,911.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.36 : 4,376.70 = 1,274.54 : x
  2. Step 2: Convert to fraction form
    2,918.36/4,376.70 = 1,274.54/x
  3. Step 3: Cross multiply
    2,918.36x = 4,376.70 × 1,274.54
  4. Step 4: Simplify right side
    2,918.36x = 5,578,257.33
  5. Step 5: Solve for x
    x = 5,578,257.33/2,918.36
  6. Step 6: Final answer
    x = 1,911.43

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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.