Home / 3,873.36-5,811.66-1,276.56

Finding the Fourth Proportional to 3,873.36, 5,811.66 and 1,276.56

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Solution

The fourth proportional to 3,873.36, 5,811.66 and 1,276.56 is: 1,915.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,873.36 : 5,811.66 = 1,276.56 : x
  2. Step 2: Convert to fraction form
    3,873.36/5,811.66 = 1,276.56/x
  3. Step 3: Cross multiply
    3,873.36x = 5,811.66 × 1,276.56
  4. Step 4: Simplify right side
    3,873.36x = 7,418,932.69
  5. Step 5: Solve for x
    x = 7,418,932.69/3,873.36
  6. Step 6: Final answer
    x = 1,915.37

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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.