Home / 2,611.26-3,914.64-1,313.64

Finding the Fourth Proportional to 2,611.26, 3,914.64 and 1,313.64

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Solution

The fourth proportional to 2,611.26, 3,914.64 and 1,313.64 is: 1,969.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.26 : 3,914.64 = 1,313.64 : x
  2. Step 2: Convert to fraction form
    2,611.26/3,914.64 = 1,313.64/x
  3. Step 3: Cross multiply
    2,611.26x = 3,914.64 × 1,313.64
  4. Step 4: Simplify right side
    2,611.26x = 5,142,427.69
  5. Step 5: Solve for x
    x = 5,142,427.69/2,611.26
  6. Step 6: Final answer
    x = 1,969.33

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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.