Home / 3,610.86-5,415.36-1,419.60

Finding the Fourth Proportional to 3,610.86, 5,415.36 and 1,419.60

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Solution

The fourth proportional to 3,610.86, 5,415.36 and 1,419.60 is: 2,129.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.86 : 5,415.36 = 1,419.60 : x
  2. Step 2: Convert to fraction form
    3,610.86/5,415.36 = 1,419.60/x
  3. Step 3: Cross multiply
    3,610.86x = 5,415.36 × 1,419.60
  4. Step 4: Simplify right side
    3,610.86x = 7,687,645.06
  5. Step 5: Solve for x
    x = 7,687,645.06/3,610.86
  6. Step 6: Final answer
    x = 2,129.03

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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.