Home / 3,320.88-4,982.08-1,129.56

Finding the Fourth Proportional to 3,320.88, 4,982.08 and 1,129.56

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Solution

The fourth proportional to 3,320.88, 4,982.08 and 1,129.56 is: 1,694.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.88 : 4,982.08 = 1,129.56 : x
  2. Step 2: Convert to fraction form
    3,320.88/4,982.08 = 1,129.56/x
  3. Step 3: Cross multiply
    3,320.88x = 4,982.08 × 1,129.56
  4. Step 4: Simplify right side
    3,320.88x = 5,627,558.28
  5. Step 5: Solve for x
    x = 5,627,558.28/3,320.88
  6. Step 6: Final answer
    x = 1,694.60

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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.