Home / 3,351.40-5,021.70-2,800.60

Finding the Fourth Proportional to 3,351.40, 5,021.70 and 2,800.60

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Solution

The fourth proportional to 3,351.40, 5,021.70 and 2,800.60 is: 4,196.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,351.40 : 5,021.70 = 2,800.60 : x
  2. Step 2: Convert to fraction form
    3,351.40/5,021.70 = 2,800.60/x
  3. Step 3: Cross multiply
    3,351.40x = 5,021.70 × 2,800.60
  4. Step 4: Simplify right side
    3,351.40x = 14,063,773.02
  5. Step 5: Solve for x
    x = 14,063,773.02/3,351.40
  6. Step 6: Final answer
    x = 4,196.39

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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.