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Finding the Fourth Proportional to 5,998.80, 8,998.20 and 2,101.08

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Solution

The fourth proportional to 5,998.80, 8,998.20 and 2,101.08 is: 3,151.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,998.80 : 8,998.20 = 2,101.08 : x
  2. Step 2: Convert to fraction form
    5,998.80/8,998.20 = 2,101.08/x
  3. Step 3: Cross multiply
    5,998.80x = 8,998.20 × 2,101.08
  4. Step 4: Simplify right side
    5,998.80x = 18,905,938.06
  5. Step 5: Solve for x
    x = 18,905,938.06/5,998.80
  6. Step 6: Final answer
    x = 3,151.62

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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.