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Finding the Fourth Proportional to 6,679.96, 10,017.20 and 1,998.32

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Solution

The fourth proportional to 6,679.96, 10,017.20 and 1,998.32 is: 2,996.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.96 : 10,017.20 = 1,998.32 : x
  2. Step 2: Convert to fraction form
    6,679.96/10,017.20 = 1,998.32/x
  3. Step 3: Cross multiply
    6,679.96x = 10,017.20 × 1,998.32
  4. Step 4: Simplify right side
    6,679.96x = 20,017,571.10
  5. Step 5: Solve for x
    x = 20,017,571.10/6,679.96
  6. Step 6: Final answer
    x = 2,996.66

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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.