Home / 6,620.28-9,135.38-3,635.88

Finding the Fourth Proportional to 6,620.28, 9,135.38 and 3,635.88

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Solution

The fourth proportional to 6,620.28, 9,135.38 and 3,635.88 is: 5,017.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.28 : 9,135.38 = 3,635.88 : x
  2. Step 2: Convert to fraction form
    6,620.28/9,135.38 = 3,635.88/x
  3. Step 3: Cross multiply
    6,620.28x = 9,135.38 × 3,635.88
  4. Step 4: Simplify right side
    6,620.28x = 33,215,145.43
  5. Step 5: Solve for x
    x = 33,215,145.43/6,620.28
  6. Step 6: Final answer
    x = 5,017.18

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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.