Home / 6,679.21-10,016.08-2,978.90

Finding the Fourth Proportional to 6,679.21, 10,016.08 and 2,978.90

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Solution

The fourth proportional to 6,679.21, 10,016.08 and 2,978.90 is: 4,467.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.21 : 10,016.08 = 2,978.90 : x
  2. Step 2: Convert to fraction form
    6,679.21/10,016.08 = 2,978.90/x
  3. Step 3: Cross multiply
    6,679.21x = 10,016.08 × 2,978.90
  4. Step 4: Simplify right side
    6,679.21x = 29,836,918.30
  5. Step 5: Solve for x
    x = 29,836,918.30/6,679.21
  6. Step 6: Final answer
    x = 4,467.13

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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.