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Finding the Fourth Proportional to 1,933.70, 2,673.69 and 1,687.67

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Solution

The fourth proportional to 1,933.70, 2,673.69 and 1,687.67 is: 2,333.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,933.70 : 2,673.69 = 1,687.67 : x
  2. Step 2: Convert to fraction form
    1,933.70/2,673.69 = 1,687.67/x
  3. Step 3: Cross multiply
    1,933.70x = 2,673.69 × 1,687.67
  4. Step 4: Simplify right side
    1,933.70x = 4,512,306.40
  5. Step 5: Solve for x
    x = 4,512,306.40/1,933.70
  6. Step 6: Final answer
    x = 2,333.51

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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.