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Finding the Fourth Proportional to 2,558.44, 3,836.79 and 998.32

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Solution

The fourth proportional to 2,558.44, 3,836.79 and 998.32 is: 1,497.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.44 : 3,836.79 = 998.32 : x
  2. Step 2: Convert to fraction form
    2,558.44/3,836.79 = 998.32/x
  3. Step 3: Cross multiply
    2,558.44x = 3,836.79 × 998.32
  4. Step 4: Simplify right side
    2,558.44x = 3,830,344.19
  5. Step 5: Solve for x
    x = 3,830,344.19/2,558.44
  6. Step 6: Final answer
    x = 1,497.14

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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.