Home / 5,518.27-7,615.11-3,000.43

Finding the Fourth Proportional to 5,518.27, 7,615.11 and 3,000.43

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Solution

The fourth proportional to 5,518.27, 7,615.11 and 3,000.43 is: 4,140.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.27 : 7,615.11 = 3,000.43 : x
  2. Step 2: Convert to fraction form
    5,518.27/7,615.11 = 3,000.43/x
  3. Step 3: Cross multiply
    5,518.27x = 7,615.11 × 3,000.43
  4. Step 4: Simplify right side
    5,518.27x = 22,848,604.50
  5. Step 5: Solve for x
    x = 22,848,604.50/5,518.27
  6. Step 6: Final answer
    x = 4,140.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.