Home / 3,216.28-4,438.38-1,819

Finding the Fourth Proportional to 3,216.28, 4,438.38 and 1,819

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Solution

The fourth proportional to 3,216.28, 4,438.38 and 1,819 is: 2,510.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.28 : 4,438.38 = 1,819 : x
  2. Step 2: Convert to fraction form
    3,216.28/4,438.38 = 1,819/x
  3. Step 3: Cross multiply
    3,216.28x = 4,438.38 × 1,819
  4. Step 4: Simplify right side
    3,216.28x = 8,073,413.22
  5. Step 5: Solve for x
    x = 8,073,413.22/3,216.28
  6. Step 6: Final answer
    x = 2,510.17

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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.