Home / 2,678.09-4,017.52-829.37

Finding the Fourth Proportional to 2,678.09, 4,017.52 and 829.37

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Solution

The fourth proportional to 2,678.09, 4,017.52 and 829.37 is: 1,244.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.09 : 4,017.52 = 829.37 : x
  2. Step 2: Convert to fraction form
    2,678.09/4,017.52 = 829.37/x
  3. Step 3: Cross multiply
    2,678.09x = 4,017.52 × 829.37
  4. Step 4: Simplify right side
    2,678.09x = 3,332,010.56
  5. Step 5: Solve for x
    x = 3,332,010.56/2,678.09
  6. Step 6: Final answer
    x = 1,244.17

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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.