Home / 5,181.94-7,151.30-2,824.21

Finding the Fourth Proportional to 5,181.94, 7,151.30 and 2,824.21

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Solution

The fourth proportional to 5,181.94, 7,151.30 and 2,824.21 is: 3,897.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.94 : 7,151.30 = 2,824.21 : x
  2. Step 2: Convert to fraction form
    5,181.94/7,151.30 = 2,824.21/x
  3. Step 3: Cross multiply
    5,181.94x = 7,151.30 × 2,824.21
  4. Step 4: Simplify right side
    5,181.94x = 20,196,772.97
  5. Step 5: Solve for x
    x = 20,196,772.97/5,181.94
  6. Step 6: Final answer
    x = 3,897.53

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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.