Home / 3,677.68-5,075.22-1,999.09

Finding the Fourth Proportional to 3,677.68, 5,075.22 and 1,999.09

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Solution

The fourth proportional to 3,677.68, 5,075.22 and 1,999.09 is: 2,758.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,677.68 : 5,075.22 = 1,999.09 : x
  2. Step 2: Convert to fraction form
    3,677.68/5,075.22 = 1,999.09/x
  3. Step 3: Cross multiply
    3,677.68x = 5,075.22 × 1,999.09
  4. Step 4: Simplify right side
    3,677.68x = 10,145,821.55
  5. Step 5: Solve for x
    x = 10,145,821.55/3,677.68
  6. Step 6: Final answer
    x = 2,758.76

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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.