Home / 3,311.64-4,964.03-1,119.63

Finding the Fourth Proportional to 3,311.64, 4,964.03 and 1,119.63

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Solution

The fourth proportional to 3,311.64, 4,964.03 and 1,119.63 is: 1,678.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.64 : 4,964.03 = 1,119.63 : x
  2. Step 2: Convert to fraction form
    3,311.64/4,964.03 = 1,119.63/x
  3. Step 3: Cross multiply
    3,311.64x = 4,964.03 × 1,119.63
  4. Step 4: Simplify right side
    3,311.64x = 5,557,871.31
  5. Step 5: Solve for x
    x = 5,557,871.31/3,311.64
  6. Step 6: Final answer
    x = 1,678.28

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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.