Home / 3,827.78-5,281.99-2,149.26

Finding the Fourth Proportional to 3,827.78, 5,281.99 and 2,149.26

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Solution

The fourth proportional to 3,827.78, 5,281.99 and 2,149.26 is: 2,965.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,827.78 : 5,281.99 = 2,149.26 : x
  2. Step 2: Convert to fraction form
    3,827.78/5,281.99 = 2,149.26/x
  3. Step 3: Cross multiply
    3,827.78x = 5,281.99 × 2,149.26
  4. Step 4: Simplify right side
    3,827.78x = 11,352,364.45
  5. Step 5: Solve for x
    x = 11,352,364.45/3,827.78
  6. Step 6: Final answer
    x = 2,965.78

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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.