Home / 3,809.63-5,255.17-2,216.09

Finding the Fourth Proportional to 3,809.63, 5,255.17 and 2,216.09

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Solution

The fourth proportional to 3,809.63, 5,255.17 and 2,216.09 is: 3,056.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.63 : 5,255.17 = 2,216.09 : x
  2. Step 2: Convert to fraction form
    3,809.63/5,255.17 = 2,216.09/x
  3. Step 3: Cross multiply
    3,809.63x = 5,255.17 × 2,216.09
  4. Step 4: Simplify right side
    3,809.63x = 11,645,937.28
  5. Step 5: Solve for x
    x = 11,645,937.28/3,809.63
  6. Step 6: Final answer
    x = 3,056.98

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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.