Home / 3,487.27-5,231.03-1,638.37

Finding the Fourth Proportional to 3,487.27, 5,231.03 and 1,638.37

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Solution

The fourth proportional to 3,487.27, 5,231.03 and 1,638.37 is: 2,457.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.27 : 5,231.03 = 1,638.37 : x
  2. Step 2: Convert to fraction form
    3,487.27/5,231.03 = 1,638.37/x
  3. Step 3: Cross multiply
    3,487.27x = 5,231.03 × 1,638.37
  4. Step 4: Simplify right side
    3,487.27x = 8,570,362.62
  5. Step 5: Solve for x
    x = 8,570,362.62/3,487.27
  6. Step 6: Final answer
    x = 2,457.61

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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.