Home / 6,922.40-10,383.23-1,991.85

Finding the Fourth Proportional to 6,922.40, 10,383.23 and 1,991.85

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Solution

The fourth proportional to 6,922.40, 10,383.23 and 1,991.85 is: 2,987.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,922.40 : 10,383.23 = 1,991.85 : x
  2. Step 2: Convert to fraction form
    6,922.40/10,383.23 = 1,991.85/x
  3. Step 3: Cross multiply
    6,922.40x = 10,383.23 × 1,991.85
  4. Step 4: Simplify right side
    6,922.40x = 20,681,826.72
  5. Step 5: Solve for x
    x = 20,681,826.72/6,922.40
  6. Step 6: Final answer
    x = 2,987.67

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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.