Home / 3,744.54-5,617.33-1,278.70

Finding the Fourth Proportional to 3,744.54, 5,617.33 and 1,278.70

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Solution

The fourth proportional to 3,744.54, 5,617.33 and 1,278.70 is: 1,918.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,744.54 : 5,617.33 = 1,278.70 : x
  2. Step 2: Convert to fraction form
    3,744.54/5,617.33 = 1,278.70/x
  3. Step 3: Cross multiply
    3,744.54x = 5,617.33 × 1,278.70
  4. Step 4: Simplify right side
    3,744.54x = 7,182,879.87
  5. Step 5: Solve for x
    x = 7,182,879.87/3,744.54
  6. Step 6: Final answer
    x = 1,918.23

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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.