Home / 2,609.21-3,914.12-2,060.64

Finding the Fourth Proportional to 2,609.21, 3,914.12 and 2,060.64

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Solution

The fourth proportional to 2,609.21, 3,914.12 and 2,060.64 is: 3,091.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,609.21 : 3,914.12 = 2,060.64 : x
  2. Step 2: Convert to fraction form
    2,609.21/3,914.12 = 2,060.64/x
  3. Step 3: Cross multiply
    2,609.21x = 3,914.12 × 2,060.64
  4. Step 4: Simplify right side
    2,609.21x = 8,065,597.39
  5. Step 5: Solve for x
    x = 8,065,597.39/2,609.21
  6. Step 6: Final answer
    x = 3,091.20

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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.