Home / 3,410.13-5,115.19-1,359.57

Finding the Fourth Proportional to 3,410.13, 5,115.19 and 1,359.57

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Solution

The fourth proportional to 3,410.13, 5,115.19 and 1,359.57 is: 2,039.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,410.13 : 5,115.19 = 1,359.57 : x
  2. Step 2: Convert to fraction form
    3,410.13/5,115.19 = 1,359.57/x
  3. Step 3: Cross multiply
    3,410.13x = 5,115.19 × 1,359.57
  4. Step 4: Simplify right side
    3,410.13x = 6,954,429.89
  5. Step 5: Solve for x
    x = 6,954,429.89/3,410.13
  6. Step 6: Final answer
    x = 2,039.35

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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.