Home / 4,040.56-5,578.08-2,721.22

Finding the Fourth Proportional to 4,040.56, 5,578.08 and 2,721.22

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Solution

The fourth proportional to 4,040.56, 5,578.08 and 2,721.22 is: 3,756.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,040.56 : 5,578.08 = 2,721.22 : x
  2. Step 2: Convert to fraction form
    4,040.56/5,578.08 = 2,721.22/x
  3. Step 3: Cross multiply
    4,040.56x = 5,578.08 × 2,721.22
  4. Step 4: Simplify right side
    4,040.56x = 15,179,182.86
  5. Step 5: Solve for x
    x = 15,179,182.86/4,040.56
  6. Step 6: Final answer
    x = 3,756.70

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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.