Home / 5,211.92-7,815.08-2,286.84

Finding the Fourth Proportional to 5,211.92, 7,815.08 and 2,286.84

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Solution

The fourth proportional to 5,211.92, 7,815.08 and 2,286.84 is: 3,429.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.92 : 7,815.08 = 2,286.84 : x
  2. Step 2: Convert to fraction form
    5,211.92/7,815.08 = 2,286.84/x
  3. Step 3: Cross multiply
    5,211.92x = 7,815.08 × 2,286.84
  4. Step 4: Simplify right side
    5,211.92x = 17,871,837.55
  5. Step 5: Solve for x
    x = 17,871,837.55/5,211.92
  6. Step 6: Final answer
    x = 3,429.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.