Home / 2,039.29-2,814.22-1,107.79

Finding the Fourth Proportional to 2,039.29, 2,814.22 and 1,107.79

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Solution

The fourth proportional to 2,039.29, 2,814.22 and 1,107.79 is: 1,528.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.29 : 2,814.22 = 1,107.79 : x
  2. Step 2: Convert to fraction form
    2,039.29/2,814.22 = 1,107.79/x
  3. Step 3: Cross multiply
    2,039.29x = 2,814.22 × 1,107.79
  4. Step 4: Simplify right side
    2,039.29x = 3,117,564.77
  5. Step 5: Solve for x
    x = 3,117,564.77/2,039.29
  6. Step 6: Final answer
    x = 1,528.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.