Home / 5,214.92-7,196.55-2,857.01

Finding the Fourth Proportional to 5,214.92, 7,196.55 and 2,857.01

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Solution

The fourth proportional to 5,214.92, 7,196.55 and 2,857.01 is: 3,942.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,214.92 : 7,196.55 = 2,857.01 : x
  2. Step 2: Convert to fraction form
    5,214.92/7,196.55 = 2,857.01/x
  3. Step 3: Cross multiply
    5,214.92x = 7,196.55 × 2,857.01
  4. Step 4: Simplify right side
    5,214.92x = 20,560,568.62
  5. Step 5: Solve for x
    x = 20,560,568.62/5,214.92
  6. Step 6: Final answer
    x = 3,942.65

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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.