Home / 3,361.20-4,638.36-1,869.03

Finding the Fourth Proportional to 3,361.20, 4,638.36 and 1,869.03

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Solution

The fourth proportional to 3,361.20, 4,638.36 and 1,869.03 is: 2,579.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,361.20 : 4,638.36 = 1,869.03 : x
  2. Step 2: Convert to fraction form
    3,361.20/4,638.36 = 1,869.03/x
  3. Step 3: Cross multiply
    3,361.20x = 4,638.36 × 1,869.03
  4. Step 4: Simplify right side
    3,361.20x = 8,669,233.99
  5. Step 5: Solve for x
    x = 8,669,233.99/3,361.20
  6. Step 6: Final answer
    x = 2,579.21

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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.