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Finding the Fourth Proportional to 6,602.99, 9,115.79 and 4,489.88

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Solution

The fourth proportional to 6,602.99, 9,115.79 and 4,489.88 is: 6,198.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,602.99 : 9,115.79 = 4,489.88 : x
  2. Step 2: Convert to fraction form
    6,602.99/9,115.79 = 4,489.88/x
  3. Step 3: Cross multiply
    6,602.99x = 9,115.79 × 4,489.88
  4. Step 4: Simplify right side
    6,602.99x = 40,928,735.18
  5. Step 5: Solve for x
    x = 40,928,735.18/6,602.99
  6. Step 6: Final answer
    x = 6,198.52

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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.