Home / 1,814.20-2,720.71-1,119.83

Finding the Fourth Proportional to 1,814.20, 2,720.71 and 1,119.83

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Solution

The fourth proportional to 1,814.20, 2,720.71 and 1,119.83 is: 1,679.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,814.20 : 2,720.71 = 1,119.83 : x
  2. Step 2: Convert to fraction form
    1,814.20/2,720.71 = 1,119.83/x
  3. Step 3: Cross multiply
    1,814.20x = 2,720.71 × 1,119.83
  4. Step 4: Simplify right side
    1,814.20x = 3,046,714.18
  5. Step 5: Solve for x
    x = 3,046,714.18/1,814.20
  6. Step 6: Final answer
    x = 1,679.37

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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.