Home / 5,449.54-7,520.20-3,211.55

Finding the Fourth Proportional to 5,449.54, 7,520.20 and 3,211.55

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Solution

The fourth proportional to 5,449.54, 7,520.20 and 3,211.55 is: 4,431.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,449.54 : 7,520.20 = 3,211.55 : x
  2. Step 2: Convert to fraction form
    5,449.54/7,520.20 = 3,211.55/x
  3. Step 3: Cross multiply
    5,449.54x = 7,520.20 × 3,211.55
  4. Step 4: Simplify right side
    5,449.54x = 24,151,498.31
  5. Step 5: Solve for x
    x = 24,151,498.31/5,449.54
  6. Step 6: Final answer
    x = 4,431.84

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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.