Home / 2,285.20-3,429.08-986.56

Finding the Fourth Proportional to 2,285.20, 3,429.08 and 986.56

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Solution

The fourth proportional to 2,285.20, 3,429.08 and 986.56 is: 1,480.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.20 : 3,429.08 = 986.56 : x
  2. Step 2: Convert to fraction form
    2,285.20/3,429.08 = 986.56/x
  3. Step 3: Cross multiply
    2,285.20x = 3,429.08 × 986.56
  4. Step 4: Simplify right side
    2,285.20x = 3,382,993.16
  5. Step 5: Solve for x
    x = 3,382,993.16/2,285.20
  6. Step 6: Final answer
    x = 1,480.39

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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.