Home / 4,959.78-6,844.55-2,721.80

Finding the Fourth Proportional to 4,959.78, 6,844.55 and 2,721.80

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Solution

The fourth proportional to 4,959.78, 6,844.55 and 2,721.80 is: 3,756.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,959.78 : 6,844.55 = 2,721.80 : x
  2. Step 2: Convert to fraction form
    4,959.78/6,844.55 = 2,721.80/x
  3. Step 3: Cross multiply
    4,959.78x = 6,844.55 × 2,721.80
  4. Step 4: Simplify right side
    4,959.78x = 18,629,515.00
  5. Step 5: Solve for x
    x = 18,629,515.00/4,959.78
  6. Step 6: Final answer
    x = 3,756.12

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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.