Home / 5,387.96-8,081.94-2,102.60

Finding the Fourth Proportional to 5,387.96, 8,081.94 and 2,102.60

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Solution

The fourth proportional to 5,387.96, 8,081.94 and 2,102.60 is: 3,153.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.96 : 8,081.94 = 2,102.60 : x
  2. Step 2: Convert to fraction form
    5,387.96/8,081.94 = 2,102.60/x
  3. Step 3: Cross multiply
    5,387.96x = 8,081.94 × 2,102.60
  4. Step 4: Simplify right side
    5,387.96x = 16,993,087.04
  5. Step 5: Solve for x
    x = 16,993,087.04/5,387.96
  6. Step 6: Final answer
    x = 3,153.90

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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.