Home / 3,428.24-5,144.60-2,130.60

Finding the Fourth Proportional to 3,428.24, 5,144.60 and 2,130.60

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Solution

The fourth proportional to 3,428.24, 5,144.60 and 2,130.60 is: 3,197.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.24 : 5,144.60 = 2,130.60 : x
  2. Step 2: Convert to fraction form
    3,428.24/5,144.60 = 2,130.60/x
  3. Step 3: Cross multiply
    3,428.24x = 5,144.60 × 2,130.60
  4. Step 4: Simplify right side
    3,428.24x = 10,961,084.76
  5. Step 5: Solve for x
    x = 10,961,084.76/3,428.24
  6. Step 6: Final answer
    x = 3,197.29

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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.