Home / 5,396.82-7,446.94-3,128.14

Finding the Fourth Proportional to 5,396.82, 7,446.94 and 3,128.14

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Solution

The fourth proportional to 5,396.82, 7,446.94 and 3,128.14 is: 4,316.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,396.82 : 7,446.94 = 3,128.14 : x
  2. Step 2: Convert to fraction form
    5,396.82/7,446.94 = 3,128.14/x
  3. Step 3: Cross multiply
    5,396.82x = 7,446.94 × 3,128.14
  4. Step 4: Simplify right side
    5,396.82x = 23,295,070.89
  5. Step 5: Solve for x
    x = 23,295,070.89/5,396.82
  6. Step 6: Final answer
    x = 4,316.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.