Home / 3,455.43-5,178.79-1,874.09

Finding the Fourth Proportional to 3,455.43, 5,178.79 and 1,874.09

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Solution

The fourth proportional to 3,455.43, 5,178.79 and 1,874.09 is: 2,808.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.43 : 5,178.79 = 1,874.09 : x
  2. Step 2: Convert to fraction form
    3,455.43/5,178.79 = 1,874.09/x
  3. Step 3: Cross multiply
    3,455.43x = 5,178.79 × 1,874.09
  4. Step 4: Simplify right side
    3,455.43x = 9,705,494.17
  5. Step 5: Solve for x
    x = 9,705,494.17/3,455.43
  6. Step 6: Final answer
    x = 2,808.77

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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.