Home / 5,489.36-8,191.84-4,906.16

Finding the Fourth Proportional to 5,489.36, 8,191.84 and 4,906.16

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Solution

The fourth proportional to 5,489.36, 8,191.84 and 4,906.16 is: 7,321.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,489.36 : 8,191.84 = 4,906.16 : x
  2. Step 2: Convert to fraction form
    5,489.36/8,191.84 = 4,906.16/x
  3. Step 3: Cross multiply
    5,489.36x = 8,191.84 × 4,906.16
  4. Step 4: Simplify right side
    5,489.36x = 40,190,477.73
  5. Step 5: Solve for x
    x = 40,190,477.73/5,489.36
  6. Step 6: Final answer
    x = 7,321.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.