Home / 3,310.70-4,965.51-1,119.20

Finding the Fourth Proportional to 3,310.70, 4,965.51 and 1,119.20

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Solution

The fourth proportional to 3,310.70, 4,965.51 and 1,119.20 is: 1,678.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,310.70 : 4,965.51 = 1,119.20 : x
  2. Step 2: Convert to fraction form
    3,310.70/4,965.51 = 1,119.20/x
  3. Step 3: Cross multiply
    3,310.70x = 4,965.51 × 1,119.20
  4. Step 4: Simplify right side
    3,310.70x = 5,557,398.79
  5. Step 5: Solve for x
    x = 5,557,398.79/3,310.70
  6. Step 6: Final answer
    x = 1,678.62

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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.