Home / 3,827.85-5,282.69-2,149.38

Finding the Fourth Proportional to 3,827.85, 5,282.69 and 2,149.38

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Solution

The fourth proportional to 3,827.85, 5,282.69 and 2,149.38 is: 2,966.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,827.85 : 5,282.69 = 2,149.38 : x
  2. Step 2: Convert to fraction form
    3,827.85/5,282.69 = 2,149.38/x
  3. Step 3: Cross multiply
    3,827.85x = 5,282.69 × 2,149.38
  4. Step 4: Simplify right side
    3,827.85x = 11,354,497.49
  5. Step 5: Solve for x
    x = 11,354,497.49/3,827.85
  6. Step 6: Final answer
    x = 2,966.29

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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.