Home / 7,678.46-11,519.44-2,681.03

Finding the Fourth Proportional to 7,678.46, 11,519.44 and 2,681.03

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Solution

The fourth proportional to 7,678.46, 11,519.44 and 2,681.03 is: 4,022.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,678.46 : 11,519.44 = 2,681.03 : x
  2. Step 2: Convert to fraction form
    7,678.46/11,519.44 = 2,681.03/x
  3. Step 3: Cross multiply
    7,678.46x = 11,519.44 × 2,681.03
  4. Step 4: Simplify right side
    7,678.46x = 30,883,899.92
  5. Step 5: Solve for x
    x = 30,883,899.92/7,678.46
  6. Step 6: Final answer
    x = 4,022.15

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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.