Home / 2,943.70-4,412.31-1,211.38

Finding the Fourth Proportional to 2,943.70, 4,412.31 and 1,211.38

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Solution

The fourth proportional to 2,943.70, 4,412.31 and 1,211.38 is: 1,815.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,943.70 : 4,412.31 = 1,211.38 : x
  2. Step 2: Convert to fraction form
    2,943.70/4,412.31 = 1,211.38/x
  3. Step 3: Cross multiply
    2,943.70x = 4,412.31 × 1,211.38
  4. Step 4: Simplify right side
    2,943.70x = 5,344,984.09
  5. Step 5: Solve for x
    x = 5,344,984.09/2,943.70
  6. Step 6: Final answer
    x = 1,815.74

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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.