Home / 3,220.70-4,446.36-2,213.87

Finding the Fourth Proportional to 3,220.70, 4,446.36 and 2,213.87

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Solution

The fourth proportional to 3,220.70, 4,446.36 and 2,213.87 is: 3,056.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.70 : 4,446.36 = 2,213.87 : x
  2. Step 2: Convert to fraction form
    3,220.70/4,446.36 = 2,213.87/x
  3. Step 3: Cross multiply
    3,220.70x = 4,446.36 × 2,213.87
  4. Step 4: Simplify right side
    3,220.70x = 9,843,640.78
  5. Step 5: Solve for x
    x = 9,843,640.78/3,220.70
  6. Step 6: Final answer
    x = 3,056.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.