Home / 4,211.60-5,811.24-3,621.20

Finding the Fourth Proportional to 4,211.60, 5,811.24 and 3,621.20

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Solution

The fourth proportional to 4,211.60, 5,811.24 and 3,621.20 is: 4,996.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,211.60 : 5,811.24 = 3,621.20 : x
  2. Step 2: Convert to fraction form
    4,211.60/5,811.24 = 3,621.20/x
  3. Step 3: Cross multiply
    4,211.60x = 5,811.24 × 3,621.20
  4. Step 4: Simplify right side
    4,211.60x = 21,043,662.29
  5. Step 5: Solve for x
    x = 21,043,662.29/4,211.60
  6. Step 6: Final answer
    x = 4,996.60

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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.