Home / 3,943.18-5,436.75-3,194.38

Finding the Fourth Proportional to 3,943.18, 5,436.75 and 3,194.38

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Solution

The fourth proportional to 3,943.18, 5,436.75 and 3,194.38 is: 4,404.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.18 : 5,436.75 = 3,194.38 : x
  2. Step 2: Convert to fraction form
    3,943.18/5,436.75 = 3,194.38/x
  3. Step 3: Cross multiply
    3,943.18x = 5,436.75 × 3,194.38
  4. Step 4: Simplify right side
    3,943.18x = 17,367,045.47
  5. Step 5: Solve for x
    x = 17,367,045.47/3,943.18
  6. Step 6: Final answer
    x = 4,404.32

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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.