Home / 2,148.57-3,223.26-849.87

Finding the Fourth Proportional to 2,148.57, 3,223.26 and 849.87

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Solution

The fourth proportional to 2,148.57, 3,223.26 and 849.87 is: 1,274.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.57 : 3,223.26 = 849.87 : x
  2. Step 2: Convert to fraction form
    2,148.57/3,223.26 = 849.87/x
  3. Step 3: Cross multiply
    2,148.57x = 3,223.26 × 849.87
  4. Step 4: Simplify right side
    2,148.57x = 2,739,351.98
  5. Step 5: Solve for x
    x = 2,739,351.98/2,148.57
  6. Step 6: Final answer
    x = 1,274.97

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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.