Home / 4,161.94-6,243.39-1,388.98

Finding the Fourth Proportional to 4,161.94, 6,243.39 and 1,388.98

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Solution

The fourth proportional to 4,161.94, 6,243.39 and 1,388.98 is: 2,083.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,161.94 : 6,243.39 = 1,388.98 : x
  2. Step 2: Convert to fraction form
    4,161.94/6,243.39 = 1,388.98/x
  3. Step 3: Cross multiply
    4,161.94x = 6,243.39 × 1,388.98
  4. Step 4: Simplify right side
    4,161.94x = 8,671,943.84
  5. Step 5: Solve for x
    x = 8,671,943.84/4,161.94
  6. Step 6: Final answer
    x = 2,083.63

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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.