Home / 3,219-4,828.37-1,245.57

Finding the Fourth Proportional to 3,219, 4,828.37 and 1,245.57

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Solution

The fourth proportional to 3,219, 4,828.37 and 1,245.57 is: 1,868.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219 : 4,828.37 = 1,245.57 : x
  2. Step 2: Convert to fraction form
    3,219/4,828.37 = 1,245.57/x
  3. Step 3: Cross multiply
    3,219x = 4,828.37 × 1,245.57
  4. Step 4: Simplify right side
    3,219x = 6,014,066.59
  5. Step 5: Solve for x
    x = 6,014,066.59/3,219
  6. Step 6: Final answer
    x = 1,868.30

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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.