Home / 3,982.57-5,496.02-2,190.22

Finding the Fourth Proportional to 3,982.57, 5,496.02 and 2,190.22

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Solution

The fourth proportional to 3,982.57, 5,496.02 and 2,190.22 is: 3,022.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.57 : 5,496.02 = 2,190.22 : x
  2. Step 2: Convert to fraction form
    3,982.57/5,496.02 = 2,190.22/x
  3. Step 3: Cross multiply
    3,982.57x = 5,496.02 × 2,190.22
  4. Step 4: Simplify right side
    3,982.57x = 12,037,492.92
  5. Step 5: Solve for x
    x = 12,037,492.92/3,982.57
  6. Step 6: Final answer
    x = 3,022.54

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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.