Home / 3,219.89-4,828.61-1,371.87

Finding the Fourth Proportional to 3,219.89, 4,828.61 and 1,371.87

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Solution

The fourth proportional to 3,219.89, 4,828.61 and 1,371.87 is: 2,057.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.89 : 4,828.61 = 1,371.87 : x
  2. Step 2: Convert to fraction form
    3,219.89/4,828.61 = 1,371.87/x
  3. Step 3: Cross multiply
    3,219.89x = 4,828.61 × 1,371.87
  4. Step 4: Simplify right side
    3,219.89x = 6,624,228.63
  5. Step 5: Solve for x
    x = 6,624,228.63/3,219.89
  6. Step 6: Final answer
    x = 2,057.29

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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.