Home / 3,809.20-5,256.71-2,216.23

Finding the Fourth Proportional to 3,809.20, 5,256.71 and 2,216.23

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Solution

The fourth proportional to 3,809.20, 5,256.71 and 2,216.23 is: 3,058.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.20 : 5,256.71 = 2,216.23 : x
  2. Step 2: Convert to fraction form
    3,809.20/5,256.71 = 2,216.23/x
  3. Step 3: Cross multiply
    3,809.20x = 5,256.71 × 2,216.23
  4. Step 4: Simplify right side
    3,809.20x = 11,650,078.40
  5. Step 5: Solve for x
    x = 11,650,078.40/3,809.20
  6. Step 6: Final answer
    x = 3,058.41

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Half scale
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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.