Home / 5,261.79-7,885.16-3,864.16

Finding the Fourth Proportional to 5,261.79, 7,885.16 and 3,864.16

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Solution

The fourth proportional to 5,261.79, 7,885.16 and 3,864.16 is: 5,790.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.79 : 7,885.16 = 3,864.16 : x
  2. Step 2: Convert to fraction form
    5,261.79/7,885.16 = 3,864.16/x
  3. Step 3: Cross multiply
    5,261.79x = 7,885.16 × 3,864.16
  4. Step 4: Simplify right side
    5,261.79x = 30,469,519.87
  5. Step 5: Solve for x
    x = 30,469,519.87/5,261.79
  6. Step 6: Final answer
    x = 5,790.71

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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.