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Finding the Fourth Proportional to 6,139.37, 9,208.99 and 3,674.88

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Solution

The fourth proportional to 6,139.37, 9,208.99 and 3,674.88 is: 5,512.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.37 : 9,208.99 = 3,674.88 : x
  2. Step 2: Convert to fraction form
    6,139.37/9,208.99 = 3,674.88/x
  3. Step 3: Cross multiply
    6,139.37x = 9,208.99 × 3,674.88
  4. Step 4: Simplify right side
    6,139.37x = 33,841,900.96
  5. Step 5: Solve for x
    x = 33,841,900.96/6,139.37
  6. Step 6: Final answer
    x = 5,512.28

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1.5x scale

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.