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Finding the Fourth Proportional to 1,993.53, 2,750.58 and 1,294.50

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Solution

The fourth proportional to 1,993.53, 2,750.58 and 1,294.50 is: 1,786.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993.53 : 2,750.58 = 1,294.50 : x
  2. Step 2: Convert to fraction form
    1,993.53/2,750.58 = 1,294.50/x
  3. Step 3: Cross multiply
    1,993.53x = 2,750.58 × 1,294.50
  4. Step 4: Simplify right side
    1,993.53x = 3,560,625.81
  5. Step 5: Solve for x
    x = 3,560,625.81/1,993.53
  6. Step 6: Final answer
    x = 1,786.09

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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.