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Finding the Fourth Proportional to 6,628.33, 9,147.03 and 3,977.24

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Solution

The fourth proportional to 6,628.33, 9,147.03 and 3,977.24 is: 5,488.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,628.33 : 9,147.03 = 3,977.24 : x
  2. Step 2: Convert to fraction form
    6,628.33/9,147.03 = 3,977.24/x
  3. Step 3: Cross multiply
    6,628.33x = 9,147.03 × 3,977.24
  4. Step 4: Simplify right side
    6,628.33x = 36,379,872.95
  5. Step 5: Solve for x
    x = 36,379,872.95/6,628.33
  6. Step 6: Final answer
    x = 5,488.54

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1.5x scale

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.