Home / 3,678.33-5,075.59-2,185.70

Finding the Fourth Proportional to 3,678.33, 5,075.59 and 2,185.70

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Solution

The fourth proportional to 3,678.33, 5,075.59 and 2,185.70 is: 3,015.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.33 : 5,075.59 = 2,185.70 : x
  2. Step 2: Convert to fraction form
    3,678.33/5,075.59 = 2,185.70/x
  3. Step 3: Cross multiply
    3,678.33x = 5,075.59 × 2,185.70
  4. Step 4: Simplify right side
    3,678.33x = 11,093,706.13
  5. Step 5: Solve for x
    x = 11,093,706.13/3,678.33
  6. Step 6: Final answer
    x = 3,015.97

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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.