Home / 5,218.92-7,202.08-2,861.08

Finding the Fourth Proportional to 5,218.92, 7,202.08 and 2,861.08

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Solution

The fourth proportional to 5,218.92, 7,202.08 and 2,861.08 is: 3,948.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.92 : 7,202.08 = 2,861.08 : x
  2. Step 2: Convert to fraction form
    5,218.92/7,202.08 = 2,861.08/x
  3. Step 3: Cross multiply
    5,218.92x = 7,202.08 × 2,861.08
  4. Step 4: Simplify right side
    5,218.92x = 20,605,727.05
  5. Step 5: Solve for x
    x = 20,605,727.05/5,218.92
  6. Step 6: Final answer
    x = 3,948.27

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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.