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Finding the Fourth Proportional to 6,137.37, 8,472.42 and 3,618.63

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Solution

The fourth proportional to 6,137.37, 8,472.42 and 3,618.63 is: 4,995.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,137.37 : 8,472.42 = 3,618.63 : x
  2. Step 2: Convert to fraction form
    6,137.37/8,472.42 = 3,618.63/x
  3. Step 3: Cross multiply
    6,137.37x = 8,472.42 × 3,618.63
  4. Step 4: Simplify right side
    6,137.37x = 30,658,553.18
  5. Step 5: Solve for x
    x = 30,658,553.18/6,137.37
  6. Step 6: Final answer
    x = 4,995.39

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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.