Home / 5,431.44-8,148.36-1,968.60

Finding the Fourth Proportional to 5,431.44, 8,148.36 and 1,968.60

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Solution

The fourth proportional to 5,431.44, 8,148.36 and 1,968.60 is: 2,953.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.44 : 8,148.36 = 1,968.60 : x
  2. Step 2: Convert to fraction form
    5,431.44/8,148.36 = 1,968.60/x
  3. Step 3: Cross multiply
    5,431.44x = 8,148.36 × 1,968.60
  4. Step 4: Simplify right side
    5,431.44x = 16,040,861.50
  5. Step 5: Solve for x
    x = 16,040,861.50/5,431.44
  6. Step 6: Final answer
    x = 2,953.33

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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.