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Finding the Fourth Proportional to 2,993.26, 4,489.90 and 1,018.50

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Solution

The fourth proportional to 2,993.26, 4,489.90 and 1,018.50 is: 1,527.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,993.26 : 4,489.90 = 1,018.50 : x
  2. Step 2: Convert to fraction form
    2,993.26/4,489.90 = 1,018.50/x
  3. Step 3: Cross multiply
    2,993.26x = 4,489.90 × 1,018.50
  4. Step 4: Simplify right side
    2,993.26x = 4,572,963.15
  5. Step 5: Solve for x
    x = 4,572,963.15/2,993.26
  6. Step 6: Final answer
    x = 1,527.75

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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.