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Finding the Fourth Proportional to 3,857.83, 5,775.81 and 2,623.39

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Solution

The fourth proportional to 3,857.83, 5,775.81 and 2,623.39 is: 3,927.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.83 : 5,775.81 = 2,623.39 : x
  2. Step 2: Convert to fraction form
    3,857.83/5,775.81 = 2,623.39/x
  3. Step 3: Cross multiply
    3,857.83x = 5,775.81 × 2,623.39
  4. Step 4: Simplify right side
    3,857.83x = 15,152,177.92
  5. Step 5: Solve for x
    x = 15,152,177.92/3,857.83
  6. Step 6: Final answer
    x = 3,927.65

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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.