Home / 3,105.01-4,284.58-1,910.05

Finding the Fourth Proportional to 3,105.01, 4,284.58 and 1,910.05

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Solution

The fourth proportional to 3,105.01, 4,284.58 and 1,910.05 is: 2,635.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.01 : 4,284.58 = 1,910.05 : x
  2. Step 2: Convert to fraction form
    3,105.01/4,284.58 = 1,910.05/x
  3. Step 3: Cross multiply
    3,105.01x = 4,284.58 × 1,910.05
  4. Step 4: Simplify right side
    3,105.01x = 8,183,774.22
  5. Step 5: Solve for x
    x = 8,183,774.22/3,105.01
  6. Step 6: Final answer
    x = 2,635.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.