Home / 3,945.57-5,918.07-1,023.78

Finding the Fourth Proportional to 3,945.57, 5,918.07 and 1,023.78

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Solution

The fourth proportional to 3,945.57, 5,918.07 and 1,023.78 is: 1,535.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.57 : 5,918.07 = 1,023.78 : x
  2. Step 2: Convert to fraction form
    3,945.57/5,918.07 = 1,023.78/x
  3. Step 3: Cross multiply
    3,945.57x = 5,918.07 × 1,023.78
  4. Step 4: Simplify right side
    3,945.57x = 6,058,801.70
  5. Step 5: Solve for x
    x = 6,058,801.70/3,945.57
  6. Step 6: Final answer
    x = 1,535.60

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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.