Home / 5,459.44-8,189.52-1,999.12

Finding the Fourth Proportional to 5,459.44, 8,189.52 and 1,999.12

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Solution

The fourth proportional to 5,459.44, 8,189.52 and 1,999.12 is: 2,998.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,459.44 : 8,189.52 = 1,999.12 : x
  2. Step 2: Convert to fraction form
    5,459.44/8,189.52 = 1,999.12/x
  3. Step 3: Cross multiply
    5,459.44x = 8,189.52 × 1,999.12
  4. Step 4: Simplify right side
    5,459.44x = 16,371,833.22
  5. Step 5: Solve for x
    x = 16,371,833.22/5,459.44
  6. Step 6: Final answer
    x = 2,998.81

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Double scale
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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.