Home / 3,419.03-5,129.22-1,079.39

Finding the Fourth Proportional to 3,419.03, 5,129.22 and 1,079.39

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Solution

The fourth proportional to 3,419.03, 5,129.22 and 1,079.39 is: 1,619.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.03 : 5,129.22 = 1,079.39 : x
  2. Step 2: Convert to fraction form
    3,419.03/5,129.22 = 1,079.39/x
  3. Step 3: Cross multiply
    3,419.03x = 5,129.22 × 1,079.39
  4. Step 4: Simplify right side
    3,419.03x = 5,536,428.78
  5. Step 5: Solve for x
    x = 5,536,428.78/3,419.03
  6. Step 6: Final answer
    x = 1,619.30

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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.