Home / 3,721.58-5,578.48-1,255.56

Finding the Fourth Proportional to 3,721.58, 5,578.48 and 1,255.56

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Solution

The fourth proportional to 3,721.58, 5,578.48 and 1,255.56 is: 1,882.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.58 : 5,578.48 = 1,255.56 : x
  2. Step 2: Convert to fraction form
    3,721.58/5,578.48 = 1,255.56/x
  3. Step 3: Cross multiply
    3,721.58x = 5,578.48 × 1,255.56
  4. Step 4: Simplify right side
    3,721.58x = 7,004,116.35
  5. Step 5: Solve for x
    x = 7,004,116.35/3,721.58
  6. Step 6: Final answer
    x = 1,882.03

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1.5x scale

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.