Home / 3,669.39-5,063.76-1,990.85

Finding the Fourth Proportional to 3,669.39, 5,063.76 and 1,990.85

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Solution

The fourth proportional to 3,669.39, 5,063.76 and 1,990.85 is: 2,747.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669.39 : 5,063.76 = 1,990.85 : x
  2. Step 2: Convert to fraction form
    3,669.39/5,063.76 = 1,990.85/x
  3. Step 3: Cross multiply
    3,669.39x = 5,063.76 × 1,990.85
  4. Step 4: Simplify right side
    3,669.39x = 10,081,161.28
  5. Step 5: Solve for x
    x = 10,081,161.28/3,669.39
  6. Step 6: Final answer
    x = 2,747.37

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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.