Home / 5,100.45-7,631.34-3,021.57

Finding the Fourth Proportional to 5,100.45, 7,631.34 and 3,021.57

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Solution

The fourth proportional to 5,100.45, 7,631.34 and 3,021.57 is: 4,520.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,100.45 : 7,631.34 = 3,021.57 : x
  2. Step 2: Convert to fraction form
    5,100.45/7,631.34 = 3,021.57/x
  3. Step 3: Cross multiply
    5,100.45x = 7,631.34 × 3,021.57
  4. Step 4: Simplify right side
    5,100.45x = 23,058,628.00
  5. Step 5: Solve for x
    x = 23,058,628.00/5,100.45
  6. Step 6: Final answer
    x = 4,520.90

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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.