Home / 5,170.16-7,735.96-3,091.28

Finding the Fourth Proportional to 5,170.16, 7,735.96 and 3,091.28

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Solution

The fourth proportional to 5,170.16, 7,735.96 and 3,091.28 is: 4,625.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.16 : 7,735.96 = 3,091.28 : x
  2. Step 2: Convert to fraction form
    5,170.16/7,735.96 = 3,091.28/x
  3. Step 3: Cross multiply
    5,170.16x = 7,735.96 × 3,091.28
  4. Step 4: Simplify right side
    5,170.16x = 23,914,018.43
  5. Step 5: Solve for x
    x = 23,914,018.43/5,170.16
  6. Step 6: Final answer
    x = 4,625.39

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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.