Home / 3,945.39-5,918.49-1,348.53

Finding the Fourth Proportional to 3,945.39, 5,918.49 and 1,348.53

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Solution

The fourth proportional to 3,945.39, 5,918.49 and 1,348.53 is: 2,022.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.39 : 5,918.49 = 1,348.53 : x
  2. Step 2: Convert to fraction form
    3,945.39/5,918.49 = 1,348.53/x
  3. Step 3: Cross multiply
    3,945.39x = 5,918.49 × 1,348.53
  4. Step 4: Simplify right side
    3,945.39x = 7,981,261.32
  5. Step 5: Solve for x
    x = 7,981,261.32/3,945.39
  6. Step 6: Final answer
    x = 2,022.93

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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.