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Finding the Fourth Proportional to 1,788.67, 2,683.01 and 1,693.90

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Solution

The fourth proportional to 1,788.67, 2,683.01 and 1,693.90 is: 2,540.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788.67 : 2,683.01 = 1,693.90 : x
  2. Step 2: Convert to fraction form
    1,788.67/2,683.01 = 1,693.90/x
  3. Step 3: Cross multiply
    1,788.67x = 2,683.01 × 1,693.90
  4. Step 4: Simplify right side
    1,788.67x = 4,544,750.64
  5. Step 5: Solve for x
    x = 4,544,750.64/1,788.67
  6. Step 6: Final answer
    x = 2,540.85

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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.