Home / 5,221.20-7,205.10-2,863.26

Finding the Fourth Proportional to 5,221.20, 7,205.10 and 2,863.26

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Solution

The fourth proportional to 5,221.20, 7,205.10 and 2,863.26 is: 3,951.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.20 : 7,205.10 = 2,863.26 : x
  2. Step 2: Convert to fraction form
    5,221.20/7,205.10 = 2,863.26/x
  3. Step 3: Cross multiply
    5,221.20x = 7,205.10 × 2,863.26
  4. Step 4: Simplify right side
    5,221.20x = 20,630,074.63
  5. Step 5: Solve for x
    x = 20,630,074.63/5,221.20
  6. Step 6: Final answer
    x = 3,951.21

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Half scale
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Double 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.