Home / 5,217.12-7,198.20-3,355.20

Finding the Fourth Proportional to 5,217.12, 7,198.20 and 3,355.20

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Solution

The fourth proportional to 5,217.12, 7,198.20 and 3,355.20 is: 4,629.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.12 : 7,198.20 = 3,355.20 : x
  2. Step 2: Convert to fraction form
    5,217.12/7,198.20 = 3,355.20/x
  3. Step 3: Cross multiply
    5,217.12x = 7,198.20 × 3,355.20
  4. Step 4: Simplify right side
    5,217.12x = 24,151,400.64
  5. Step 5: Solve for x
    x = 24,151,400.64/5,217.12
  6. Step 6: Final answer
    x = 4,629.26

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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.