Home / 5,415.39-8,119.16-3,656.03

Finding the Fourth Proportional to 5,415.39, 8,119.16 and 3,656.03

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Solution

The fourth proportional to 5,415.39, 8,119.16 and 3,656.03 is: 5,481.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.39 : 8,119.16 = 3,656.03 : x
  2. Step 2: Convert to fraction form
    5,415.39/8,119.16 = 3,656.03/x
  3. Step 3: Cross multiply
    5,415.39x = 8,119.16 × 3,656.03
  4. Step 4: Simplify right side
    5,415.39x = 29,683,833.66
  5. Step 5: Solve for x
    x = 29,683,833.66/5,415.39
  6. Step 6: Final answer
    x = 5,481.38

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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.