Home / 3,285.72-4,928.68-1,435.88

Finding the Fourth Proportional to 3,285.72, 4,928.68 and 1,435.88

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Solution

The fourth proportional to 3,285.72, 4,928.68 and 1,435.88 is: 2,153.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,285.72 : 4,928.68 = 1,435.88 : x
  2. Step 2: Convert to fraction form
    3,285.72/4,928.68 = 1,435.88/x
  3. Step 3: Cross multiply
    3,285.72x = 4,928.68 × 1,435.88
  4. Step 4: Simplify right side
    3,285.72x = 7,076,993.04
  5. Step 5: Solve for x
    x = 7,076,993.04/3,285.72
  6. Step 6: Final answer
    x = 2,153.86

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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.