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Finding the Fourth Proportional to 2,456, 3,684.84 and 994.88

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Solution

The fourth proportional to 2,456, 3,684.84 and 994.88 is: 1,492.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,456 : 3,684.84 = 994.88 : x
  2. Step 2: Convert to fraction form
    2,456/3,684.84 = 994.88/x
  3. Step 3: Cross multiply
    2,456x = 3,684.84 × 994.88
  4. Step 4: Simplify right side
    2,456x = 3,665,973.62
  5. Step 5: Solve for x
    x = 3,665,973.62/2,456
  6. Step 6: Final answer
    x = 1,492.66

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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.