Home / 3,428.22-5,144.58-2,130.60

Finding the Fourth Proportional to 3,428.22, 5,144.58 and 2,130.60

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Solution

The fourth proportional to 3,428.22, 5,144.58 and 2,130.60 is: 3,197.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.22 : 5,144.58 = 2,130.60 : x
  2. Step 2: Convert to fraction form
    3,428.22/5,144.58 = 2,130.60/x
  3. Step 3: Cross multiply
    3,428.22x = 5,144.58 × 2,130.60
  4. Step 4: Simplify right side
    3,428.22x = 10,961,042.15
  5. Step 5: Solve for x
    x = 10,961,042.15/3,428.22
  6. Step 6: Final answer
    x = 3,197.30

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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.