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Finding the Fourth Proportional to 5,998.42, 8,999.62 and 2,666.20

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Solution

The fourth proportional to 5,998.42, 8,999.62 and 2,666.20 is: 4,000.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,998.42 : 8,999.62 = 2,666.20 : x
  2. Step 2: Convert to fraction form
    5,998.42/8,999.62 = 2,666.20/x
  3. Step 3: Cross multiply
    5,998.42x = 8,999.62 × 2,666.20
  4. Step 4: Simplify right side
    5,998.42x = 23,994,786.84
  5. Step 5: Solve for x
    x = 23,994,786.84/5,998.42
  6. Step 6: Final answer
    x = 4,000.18

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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.