Home / 3,634.80-5,013.18-3,076.80

Finding the Fourth Proportional to 3,634.80, 5,013.18 and 3,076.80

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Solution

The fourth proportional to 3,634.80, 5,013.18 and 3,076.80 is: 4,243.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,634.80 : 5,013.18 = 3,076.80 : x
  2. Step 2: Convert to fraction form
    3,634.80/5,013.18 = 3,076.80/x
  3. Step 3: Cross multiply
    3,634.80x = 5,013.18 × 3,076.80
  4. Step 4: Simplify right side
    3,634.80x = 15,424,552.22
  5. Step 5: Solve for x
    x = 15,424,552.22/3,634.80
  6. Step 6: Final answer
    x = 4,243.58

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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.