Home / 5,181.96-7,151.08-2,824.12

Finding the Fourth Proportional to 5,181.96, 7,151.08 and 2,824.12

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Solution

The fourth proportional to 5,181.96, 7,151.08 and 2,824.12 is: 3,897.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.96 : 7,151.08 = 2,824.12 : x
  2. Step 2: Convert to fraction form
    5,181.96/7,151.08 = 2,824.12/x
  3. Step 3: Cross multiply
    5,181.96x = 7,151.08 × 2,824.12
  4. Step 4: Simplify right side
    5,181.96x = 20,195,508.05
  5. Step 5: Solve for x
    x = 20,195,508.05/5,181.96
  6. Step 6: Final answer
    x = 3,897.27

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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.