Home / 3,218.42-4,828.36-1,371.12

Finding the Fourth Proportional to 3,218.42, 4,828.36 and 1,371.12

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Solution

The fourth proportional to 3,218.42, 4,828.36 and 1,371.12 is: 2,056.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.42 : 4,828.36 = 1,371.12 : x
  2. Step 2: Convert to fraction form
    3,218.42/4,828.36 = 1,371.12/x
  3. Step 3: Cross multiply
    3,218.42x = 4,828.36 × 1,371.12
  4. Step 4: Simplify right side
    3,218.42x = 6,620,260.96
  5. Step 5: Solve for x
    x = 6,620,260.96/3,218.42
  6. Step 6: Final answer
    x = 2,056.99

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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.