Home / 2,161.10-3,241.71-844.80

Finding the Fourth Proportional to 2,161.10, 3,241.71 and 844.80

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Solution

The fourth proportional to 2,161.10, 3,241.71 and 844.80 is: 1,267.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.10 : 3,241.71 = 844.80 : x
  2. Step 2: Convert to fraction form
    2,161.10/3,241.71 = 844.80/x
  3. Step 3: Cross multiply
    2,161.10x = 3,241.71 × 844.80
  4. Step 4: Simplify right side
    2,161.10x = 2,738,586.31
  5. Step 5: Solve for x
    x = 2,738,586.31/2,161.10
  6. Step 6: Final answer
    x = 1,267.22

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1.5x scale

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.