Home / 3,684.92-5,075.33-3,187.58

Finding the Fourth Proportional to 3,684.92, 5,075.33 and 3,187.58

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Solution

The fourth proportional to 3,684.92, 5,075.33 and 3,187.58 is: 4,390.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,684.92 : 5,075.33 = 3,187.58 : x
  2. Step 2: Convert to fraction form
    3,684.92/5,075.33 = 3,187.58/x
  3. Step 3: Cross multiply
    3,684.92x = 5,075.33 × 3,187.58
  4. Step 4: Simplify right side
    3,684.92x = 16,177,979.09
  5. Step 5: Solve for x
    x = 16,177,979.09/3,684.92
  6. Step 6: Final answer
    x = 4,390.33

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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.