Home / 5,081.73-7,622.60-2,157.99

Finding the Fourth Proportional to 5,081.73, 7,622.60 and 2,157.99

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Solution

The fourth proportional to 5,081.73, 7,622.60 and 2,157.99 is: 3,236.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.73 : 7,622.60 = 2,157.99 : x
  2. Step 2: Convert to fraction form
    5,081.73/7,622.60 = 2,157.99/x
  3. Step 3: Cross multiply
    5,081.73x = 7,622.60 × 2,157.99
  4. Step 4: Simplify right side
    5,081.73x = 16,449,483.78
  5. Step 5: Solve for x
    x = 16,449,483.78/5,081.73
  6. Step 6: Final answer
    x = 3,236.99

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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.