Home / 3,320.79-4,969.62-2,728.68

Finding the Fourth Proportional to 3,320.79, 4,969.62 and 2,728.68

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Solution

The fourth proportional to 3,320.79, 4,969.62 and 2,728.68 is: 4,083.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.79 : 4,969.62 = 2,728.68 : x
  2. Step 2: Convert to fraction form
    3,320.79/4,969.62 = 2,728.68/x
  3. Step 3: Cross multiply
    3,320.79x = 4,969.62 × 2,728.68
  4. Step 4: Simplify right side
    3,320.79x = 13,560,502.70
  5. Step 5: Solve for x
    x = 13,560,502.70/3,320.79
  6. Step 6: Final answer
    x = 4,083.52

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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.