Home / 3,166.12-4,749.36-1,778.38

Finding the Fourth Proportional to 3,166.12, 4,749.36 and 1,778.38

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Solution

The fourth proportional to 3,166.12, 4,749.36 and 1,778.38 is: 2,667.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,166.12 : 4,749.36 = 1,778.38 : x
  2. Step 2: Convert to fraction form
    3,166.12/4,749.36 = 1,778.38/x
  3. Step 3: Cross multiply
    3,166.12x = 4,749.36 × 1,778.38
  4. Step 4: Simplify right side
    3,166.12x = 8,446,166.84
  5. Step 5: Solve for x
    x = 8,446,166.84/3,166.12
  6. Step 6: Final answer
    x = 2,667.67

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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.