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Finding the Fourth Proportional to 2,227.78, 3,339.26 and 993.50

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Solution

The fourth proportional to 2,227.78, 3,339.26 and 993.50 is: 1,489.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,227.78 : 3,339.26 = 993.50 : x
  2. Step 2: Convert to fraction form
    2,227.78/3,339.26 = 993.50/x
  3. Step 3: Cross multiply
    2,227.78x = 3,339.26 × 993.50
  4. Step 4: Simplify right side
    2,227.78x = 3,317,554.81
  5. Step 5: Solve for x
    x = 3,317,554.81/2,227.78
  6. Step 6: Final answer
    x = 1,489.18

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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.