Home / 3,687.85-5,089.33-2,115.94

Finding the Fourth Proportional to 3,687.85, 5,089.33 and 2,115.94

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Solution

The fourth proportional to 3,687.85, 5,089.33 and 2,115.94 is: 2,920.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.85 : 5,089.33 = 2,115.94 : x
  2. Step 2: Convert to fraction form
    3,687.85/5,089.33 = 2,115.94/x
  3. Step 3: Cross multiply
    3,687.85x = 5,089.33 × 2,115.94
  4. Step 4: Simplify right side
    3,687.85x = 10,768,716.38
  5. Step 5: Solve for x
    x = 10,768,716.38/3,687.85
  6. Step 6: Final answer
    x = 2,920.06

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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.