Home / 3,678.33-5,075.98-1,999.70

Finding the Fourth Proportional to 3,678.33, 5,075.98 and 1,999.70

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Solution

The fourth proportional to 3,678.33, 5,075.98 and 1,999.70 is: 2,759.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.33 : 5,075.98 = 1,999.70 : x
  2. Step 2: Convert to fraction form
    3,678.33/5,075.98 = 1,999.70/x
  3. Step 3: Cross multiply
    3,678.33x = 5,075.98 × 1,999.70
  4. Step 4: Simplify right side
    3,678.33x = 10,150,465.66
  5. Step 5: Solve for x
    x = 10,150,465.66/3,678.33
  6. Step 6: Final answer
    x = 2,759.53

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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.