Home / 3,320.82-4,984.31-1,678.52

Finding the Fourth Proportional to 3,320.82, 4,984.31 and 1,678.52

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Solution

The fourth proportional to 3,320.82, 4,984.31 and 1,678.52 is: 2,519.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.82 : 4,984.31 = 1,678.52 : x
  2. Step 2: Convert to fraction form
    3,320.82/4,984.31 = 1,678.52/x
  3. Step 3: Cross multiply
    3,320.82x = 4,984.31 × 1,678.52
  4. Step 4: Simplify right side
    3,320.82x = 8,366,230.71
  5. Step 5: Solve for x
    x = 8,366,230.71/3,320.82
  6. Step 6: Final answer
    x = 2,519.33

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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.