Home / 3,311.63-4,965.90-1,119.77

Finding the Fourth Proportional to 3,311.63, 4,965.90 and 1,119.77

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Solution

The fourth proportional to 3,311.63, 4,965.90 and 1,119.77 is: 1,679.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.63 : 4,965.90 = 1,119.77 : x
  2. Step 2: Convert to fraction form
    3,311.63/4,965.90 = 1,119.77/x
  3. Step 3: Cross multiply
    3,311.63x = 4,965.90 × 1,119.77
  4. Step 4: Simplify right side
    3,311.63x = 5,560,665.84
  5. Step 5: Solve for x
    x = 5,560,665.84/3,311.63
  6. Step 6: Final answer
    x = 1,679.13

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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.