Home / 3,757.85-5,185.89-2,079.21

Finding the Fourth Proportional to 3,757.85, 5,185.89 and 2,079.21

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Solution

The fourth proportional to 3,757.85, 5,185.89 and 2,079.21 is: 2,869.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,757.85 : 5,185.89 = 2,079.21 : x
  2. Step 2: Convert to fraction form
    3,757.85/5,185.89 = 2,079.21/x
  3. Step 3: Cross multiply
    3,757.85x = 5,185.89 × 2,079.21
  4. Step 4: Simplify right side
    3,757.85x = 10,782,554.35
  5. Step 5: Solve for x
    x = 10,782,554.35/3,757.85
  6. Step 6: Final answer
    x = 2,869.35

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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.