Home / 2,620.40-3,926.04-2,186.96

Finding the Fourth Proportional to 2,620.40, 3,926.04 and 2,186.96

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Solution

The fourth proportional to 2,620.40, 3,926.04 and 2,186.96 is: 3,276.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.40 : 3,926.04 = 2,186.96 : x
  2. Step 2: Convert to fraction form
    2,620.40/3,926.04 = 2,186.96/x
  3. Step 3: Cross multiply
    2,620.40x = 3,926.04 × 2,186.96
  4. Step 4: Simplify right side
    2,620.40x = 8,586,092.44
  5. Step 5: Solve for x
    x = 8,586,092.44/2,620.40
  6. Step 6: Final answer
    x = 3,276.63

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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.