Home / 4,921.20-7,392.60-3,630.96

Finding the Fourth Proportional to 4,921.20, 7,392.60 and 3,630.96

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Solution

The fourth proportional to 4,921.20, 7,392.60 and 3,630.96 is: 5,454.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.20 : 7,392.60 = 3,630.96 : x
  2. Step 2: Convert to fraction form
    4,921.20/7,392.60 = 3,630.96/x
  3. Step 3: Cross multiply
    4,921.20x = 7,392.60 × 3,630.96
  4. Step 4: Simplify right side
    4,921.20x = 26,842,234.90
  5. Step 5: Solve for x
    x = 26,842,234.90/4,921.20
  6. Step 6: Final answer
    x = 5,454.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.