Home / 3,281.63-4,921.25-1,200.95

Finding the Fourth Proportional to 3,281.63, 4,921.25 and 1,200.95

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Solution

The fourth proportional to 3,281.63, 4,921.25 and 1,200.95 is: 1,800.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.63 : 4,921.25 = 1,200.95 : x
  2. Step 2: Convert to fraction form
    3,281.63/4,921.25 = 1,200.95/x
  3. Step 3: Cross multiply
    3,281.63x = 4,921.25 × 1,200.95
  4. Step 4: Simplify right side
    3,281.63x = 5,910,169.18
  5. Step 5: Solve for x
    x = 5,910,169.18/3,281.63
  6. Step 6: Final answer
    x = 1,800.99

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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.