Home / 3,500.41-5,245.34-2,112.20

Finding the Fourth Proportional to 3,500.41, 5,245.34 and 2,112.20

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Solution

The fourth proportional to 3,500.41, 5,245.34 and 2,112.20 is: 3,165.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,500.41 : 5,245.34 = 2,112.20 : x
  2. Step 2: Convert to fraction form
    3,500.41/5,245.34 = 2,112.20/x
  3. Step 3: Cross multiply
    3,500.41x = 5,245.34 × 2,112.20
  4. Step 4: Simplify right side
    3,500.41x = 11,079,209.70
  5. Step 5: Solve for x
    x = 11,079,209.70/3,500.41
  6. Step 6: Final answer
    x = 3,165.12

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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.