Home / 5,394.96-8,091.72-2,105.76

Finding the Fourth Proportional to 5,394.96, 8,091.72 and 2,105.76

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Solution

The fourth proportional to 5,394.96, 8,091.72 and 2,105.76 is: 3,158.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,394.96 : 8,091.72 = 2,105.76 : x
  2. Step 2: Convert to fraction form
    5,394.96/8,091.72 = 2,105.76/x
  3. Step 3: Cross multiply
    5,394.96x = 8,091.72 × 2,105.76
  4. Step 4: Simplify right side
    5,394.96x = 17,039,220.31
  5. Step 5: Solve for x
    x = 17,039,220.31/5,394.96
  6. Step 6: Final answer
    x = 3,158.36

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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.