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Finding the Fourth Proportional to 6,348.60, 9,521.79 and 2,449.80

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Solution

The fourth proportional to 6,348.60, 9,521.79 and 2,449.80 is: 3,674.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,348.60 : 9,521.79 = 2,449.80 : x
  2. Step 2: Convert to fraction form
    6,348.60/9,521.79 = 2,449.80/x
  3. Step 3: Cross multiply
    6,348.60x = 9,521.79 × 2,449.80
  4. Step 4: Simplify right side
    6,348.60x = 23,326,481.14
  5. Step 5: Solve for x
    x = 23,326,481.14/6,348.60
  6. Step 6: Final answer
    x = 3,674.27

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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.