Home / 3,744.53-5,615.67-1,278.80

Finding the Fourth Proportional to 3,744.53, 5,615.67 and 1,278.80

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Solution

The fourth proportional to 3,744.53, 5,615.67 and 1,278.80 is: 1,917.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,744.53 : 5,615.67 = 1,278.80 : x
  2. Step 2: Convert to fraction form
    3,744.53/5,615.67 = 1,278.80/x
  3. Step 3: Cross multiply
    3,744.53x = 5,615.67 × 1,278.80
  4. Step 4: Simplify right side
    3,744.53x = 7,181,318.80
  5. Step 5: Solve for x
    x = 7,181,318.80/3,744.53
  6. Step 6: Final answer
    x = 1,917.82

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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.