Home / 2,619.07-3,928.79-1,472.11

Finding the Fourth Proportional to 2,619.07, 3,928.79 and 1,472.11

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Solution

The fourth proportional to 2,619.07, 3,928.79 and 1,472.11 is: 2,208.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.07 : 3,928.79 = 1,472.11 : x
  2. Step 2: Convert to fraction form
    2,619.07/3,928.79 = 1,472.11/x
  3. Step 3: Cross multiply
    2,619.07x = 3,928.79 × 1,472.11
  4. Step 4: Simplify right side
    2,619.07x = 5,783,611.05
  5. Step 5: Solve for x
    x = 5,783,611.05/2,619.07
  6. Step 6: Final answer
    x = 2,208.27

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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.