Home / 3,486.21-5,231.36-1,296.45

Finding the Fourth Proportional to 3,486.21, 5,231.36 and 1,296.45

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Solution

The fourth proportional to 3,486.21, 5,231.36 and 1,296.45 is: 1,945.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.21 : 5,231.36 = 1,296.45 : x
  2. Step 2: Convert to fraction form
    3,486.21/5,231.36 = 1,296.45/x
  3. Step 3: Cross multiply
    3,486.21x = 5,231.36 × 1,296.45
  4. Step 4: Simplify right side
    3,486.21x = 6,782,190.19
  5. Step 5: Solve for x
    x = 6,782,190.19/3,486.21
  6. Step 6: Final answer
    x = 1,945.43

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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.