Home / 5,221.22-7,205.12-2,863.31

Finding the Fourth Proportional to 5,221.22, 7,205.12 and 2,863.31

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Solution

The fourth proportional to 5,221.22, 7,205.12 and 2,863.31 is: 3,951.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.22 : 7,205.12 = 2,863.31 : x
  2. Step 2: Convert to fraction form
    5,221.22/7,205.12 = 2,863.31/x
  3. Step 3: Cross multiply
    5,221.22x = 7,205.12 × 2,863.31
  4. Step 4: Simplify right side
    5,221.22x = 20,630,492.15
  5. Step 5: Solve for x
    x = 20,630,492.15/5,221.22
  6. Step 6: Final answer
    x = 3,951.28

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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.