Home / 6,814.20-10,218.60-2,653.64

Finding the Fourth Proportional to 6,814.20, 10,218.60 and 2,653.64

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Solution

The fourth proportional to 6,814.20, 10,218.60 and 2,653.64 is: 3,979.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,814.20 : 10,218.60 = 2,653.64 : x
  2. Step 2: Convert to fraction form
    6,814.20/10,218.60 = 2,653.64/x
  3. Step 3: Cross multiply
    6,814.20x = 10,218.60 × 2,653.64
  4. Step 4: Simplify right side
    6,814.20x = 27,116,485.70
  5. Step 5: Solve for x
    x = 27,116,485.70/6,814.20
  6. Step 6: Final answer
    x = 3,979.41

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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.