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Finding the Fourth Proportional to 6,678.60, 9,216.42 and 3,694.44

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Solution

The fourth proportional to 6,678.60, 9,216.42 and 3,694.44 is: 5,098.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,678.60 : 9,216.42 = 3,694.44 : x
  2. Step 2: Convert to fraction form
    6,678.60/9,216.42 = 3,694.44/x
  3. Step 3: Cross multiply
    6,678.60x = 9,216.42 × 3,694.44
  4. Step 4: Simplify right side
    6,678.60x = 34,049,510.70
  5. Step 5: Solve for x
    x = 34,049,510.70/6,678.60
  6. Step 6: Final answer
    x = 5,098.30

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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.