Home / 3,280.63-4,924.05-2,185.78

Finding the Fourth Proportional to 3,280.63, 4,924.05 and 2,185.78

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Solution

The fourth proportional to 3,280.63, 4,924.05 and 2,185.78 is: 3,280.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.63 : 4,924.05 = 2,185.78 : x
  2. Step 2: Convert to fraction form
    3,280.63/4,924.05 = 2,185.78/x
  3. Step 3: Cross multiply
    3,280.63x = 4,924.05 × 2,185.78
  4. Step 4: Simplify right side
    3,280.63x = 10,762,890.01
  5. Step 5: Solve for x
    x = 10,762,890.01/3,280.63
  6. Step 6: Final answer
    x = 3,280.74

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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.