Home / 3,621.44-5,419.20-3,136.16

Finding the Fourth Proportional to 3,621.44, 5,419.20 and 3,136.16

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Solution

The fourth proportional to 3,621.44, 5,419.20 and 3,136.16 is: 4,693.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.44 : 5,419.20 = 3,136.16 : x
  2. Step 2: Convert to fraction form
    3,621.44/5,419.20 = 3,136.16/x
  3. Step 3: Cross multiply
    3,621.44x = 5,419.20 × 3,136.16
  4. Step 4: Simplify right side
    3,621.44x = 16,995,478.27
  5. Step 5: Solve for x
    x = 16,995,478.27/3,621.44
  6. Step 6: Final answer
    x = 4,693.02

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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.