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Finding the Fourth Proportional to 3,859.49, 5,785.99 and 2,623.43

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Solution

The fourth proportional to 3,859.49, 5,785.99 and 2,623.43 is: 3,932.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.49 : 5,785.99 = 2,623.43 : x
  2. Step 2: Convert to fraction form
    3,859.49/5,785.99 = 2,623.43/x
  3. Step 3: Cross multiply
    3,859.49x = 5,785.99 × 2,623.43
  4. Step 4: Simplify right side
    3,859.49x = 15,179,139.75
  5. Step 5: Solve for x
    x = 15,179,139.75/3,859.49
  6. Step 6: Final answer
    x = 3,932.94

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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.