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Finding the Fourth Proportional to 6,679.43, 10,018.26 and 2,980.80

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Solution

The fourth proportional to 6,679.43, 10,018.26 and 2,980.80 is: 4,470.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.43 : 10,018.26 = 2,980.80 : x
  2. Step 2: Convert to fraction form
    6,679.43/10,018.26 = 2,980.80/x
  3. Step 3: Cross multiply
    6,679.43x = 10,018.26 × 2,980.80
  4. Step 4: Simplify right side
    6,679.43x = 29,862,414.50
  5. Step 5: Solve for x
    x = 29,862,414.50/6,679.43
  6. Step 6: Final answer
    x = 4,470.81

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1.5x scale

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.