Home / 3,419.12-5,124.60-1,336.64

Finding the Fourth Proportional to 3,419.12, 5,124.60 and 1,336.64

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Solution

The fourth proportional to 3,419.12, 5,124.60 and 1,336.64 is: 2,003.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.12 : 5,124.60 = 1,336.64 : x
  2. Step 2: Convert to fraction form
    3,419.12/5,124.60 = 1,336.64/x
  3. Step 3: Cross multiply
    3,419.12x = 5,124.60 × 1,336.64
  4. Step 4: Simplify right side
    3,419.12x = 6,849,745.34
  5. Step 5: Solve for x
    x = 6,849,745.34/3,419.12
  6. Step 6: Final answer
    x = 2,003.37

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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.