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Finding the Fourth Proportional to 3,584.88, 4,944.78 and 2,990.07

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Solution

The fourth proportional to 3,584.88, 4,944.78 and 2,990.07 is: 4,124.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,584.88 : 4,944.78 = 2,990.07 : x
  2. Step 2: Convert to fraction form
    3,584.88/4,944.78 = 2,990.07/x
  3. Step 3: Cross multiply
    3,584.88x = 4,944.78 × 2,990.07
  4. Step 4: Simplify right side
    3,584.88x = 14,785,238.33
  5. Step 5: Solve for x
    x = 14,785,238.33/3,584.88
  6. Step 6: Final answer
    x = 4,124.33

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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.