Home / 5,459.88-8,191.34-1,997.48

Finding the Fourth Proportional to 5,459.88, 8,191.34 and 1,997.48

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Solution

The fourth proportional to 5,459.88, 8,191.34 and 1,997.48 is: 2,996.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,459.88 : 8,191.34 = 1,997.48 : x
  2. Step 2: Convert to fraction form
    5,459.88/8,191.34 = 1,997.48/x
  3. Step 3: Cross multiply
    5,459.88x = 8,191.34 × 1,997.48
  4. Step 4: Simplify right side
    5,459.88x = 16,362,037.82
  5. Step 5: Solve for x
    x = 16,362,037.82/5,459.88
  6. Step 6: Final answer
    x = 2,996.78

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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.