Home / 3,742.88-5,166.38-2,170.67

Finding the Fourth Proportional to 3,742.88, 5,166.38 and 2,170.67

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Solution

The fourth proportional to 3,742.88, 5,166.38 and 2,170.67 is: 2,996.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.88 : 5,166.38 = 2,170.67 : x
  2. Step 2: Convert to fraction form
    3,742.88/5,166.38 = 2,170.67/x
  3. Step 3: Cross multiply
    3,742.88x = 5,166.38 × 2,170.67
  4. Step 4: Simplify right side
    3,742.88x = 11,214,485.67
  5. Step 5: Solve for x
    x = 11,214,485.67/3,742.88
  6. Step 6: Final answer
    x = 2,996.22

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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.