Home / 7,181.28-9,906.84-4,197.24

Finding the Fourth Proportional to 7,181.28, 9,906.84 and 4,197.24

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Solution

The fourth proportional to 7,181.28, 9,906.84 and 4,197.24 is: 5,790.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,181.28 : 9,906.84 = 4,197.24 : x
  2. Step 2: Convert to fraction form
    7,181.28/9,906.84 = 4,197.24/x
  3. Step 3: Cross multiply
    7,181.28x = 9,906.84 × 4,197.24
  4. Step 4: Simplify right side
    7,181.28x = 41,581,385.12
  5. Step 5: Solve for x
    x = 41,581,385.12/7,181.28
  6. Step 6: Final answer
    x = 5,790.25

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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.