Home / 3,744.57-5,615.49-1,278.73

Finding the Fourth Proportional to 3,744.57, 5,615.49 and 1,278.73

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Solution

The fourth proportional to 3,744.57, 5,615.49 and 1,278.73 is: 1,917.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,744.57 : 5,615.49 = 1,278.73 : x
  2. Step 2: Convert to fraction form
    3,744.57/5,615.49 = 1,278.73/x
  3. Step 3: Cross multiply
    3,744.57x = 5,615.49 × 1,278.73
  4. Step 4: Simplify right side
    3,744.57x = 7,180,681.49
  5. Step 5: Solve for x
    x = 7,180,681.49/3,744.57
  6. Step 6: Final answer
    x = 1,917.63

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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.