Home / 3,827.60-5,281.69-2,149.19

Finding the Fourth Proportional to 3,827.60, 5,281.69 and 2,149.19

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Solution

The fourth proportional to 3,827.60, 5,281.69 and 2,149.19 is: 2,965.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,827.60 : 5,281.69 = 2,149.19 : x
  2. Step 2: Convert to fraction form
    3,827.60/5,281.69 = 2,149.19/x
  3. Step 3: Cross multiply
    3,827.60x = 5,281.69 × 2,149.19
  4. Step 4: Simplify right side
    3,827.60x = 11,351,371.05
  5. Step 5: Solve for x
    x = 11,351,371.05/3,827.60
  6. Step 6: Final answer
    x = 2,965.66

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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.