Home / 4,040.56-5,578.14-2,721.25

Finding the Fourth Proportional to 4,040.56, 5,578.14 and 2,721.25

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Solution

The fourth proportional to 4,040.56, 5,578.14 and 2,721.25 is: 3,756.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,040.56 : 5,578.14 = 2,721.25 : x
  2. Step 2: Convert to fraction form
    4,040.56/5,578.14 = 2,721.25/x
  3. Step 3: Cross multiply
    4,040.56x = 5,578.14 × 2,721.25
  4. Step 4: Simplify right side
    4,040.56x = 15,179,513.48
  5. Step 5: Solve for x
    x = 15,179,513.48/4,040.56
  6. Step 6: Final answer
    x = 3,756.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.