Home / 1,945.40-2,683.24-1,199.75

Finding the Fourth Proportional to 1,945.40, 2,683.24 and 1,199.75

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Solution

The fourth proportional to 1,945.40, 2,683.24 and 1,199.75 is: 1,654.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.40 : 2,683.24 = 1,199.75 : x
  2. Step 2: Convert to fraction form
    1,945.40/2,683.24 = 1,199.75/x
  3. Step 3: Cross multiply
    1,945.40x = 2,683.24 × 1,199.75
  4. Step 4: Simplify right side
    1,945.40x = 3,219,200.77
  5. Step 5: Solve for x
    x = 3,219,200.77/1,945.40
  6. Step 6: Final answer
    x = 1,654.78

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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.