Home / 3,561.78-5,344.70-1,918.29

Finding the Fourth Proportional to 3,561.78, 5,344.70 and 1,918.29

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Solution

The fourth proportional to 3,561.78, 5,344.70 and 1,918.29 is: 2,878.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561.78 : 5,344.70 = 1,918.29 : x
  2. Step 2: Convert to fraction form
    3,561.78/5,344.70 = 1,918.29/x
  3. Step 3: Cross multiply
    3,561.78x = 5,344.70 × 1,918.29
  4. Step 4: Simplify right side
    3,561.78x = 10,252,674.97
  5. Step 5: Solve for x
    x = 10,252,674.97/3,561.78
  6. Step 6: Final answer
    x = 2,878.53

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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.