Home / 3,865.83-5,334.92-2,272.10

Finding the Fourth Proportional to 3,865.83, 5,334.92 and 2,272.10

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Solution

The fourth proportional to 3,865.83, 5,334.92 and 2,272.10 is: 3,135.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865.83 : 5,334.92 = 2,272.10 : x
  2. Step 2: Convert to fraction form
    3,865.83/5,334.92 = 2,272.10/x
  3. Step 3: Cross multiply
    3,865.83x = 5,334.92 × 2,272.10
  4. Step 4: Simplify right side
    3,865.83x = 12,121,433.70
  5. Step 5: Solve for x
    x = 12,121,433.70/3,865.83
  6. Step 6: Final answer
    x = 3,135.53

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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.