Home / 3,813.82-5,720.76-1,348.65

Finding the Fourth Proportional to 3,813.82, 5,720.76 and 1,348.65

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Solution

The fourth proportional to 3,813.82, 5,720.76 and 1,348.65 is: 2,022.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.82 : 5,720.76 = 1,348.65 : x
  2. Step 2: Convert to fraction form
    3,813.82/5,720.76 = 1,348.65/x
  3. Step 3: Cross multiply
    3,813.82x = 5,720.76 × 1,348.65
  4. Step 4: Simplify right side
    3,813.82x = 7,715,302.97
  5. Step 5: Solve for x
    x = 7,715,302.97/3,813.82
  6. Step 6: Final answer
    x = 2,022.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.