Home / 3,280.20-4,530.26-2,858.60

Finding the Fourth Proportional to 3,280.20, 4,530.26 and 2,858.60

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Solution

The fourth proportional to 3,280.20, 4,530.26 and 2,858.60 is: 3,947.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.20 : 4,530.26 = 2,858.60 : x
  2. Step 2: Convert to fraction form
    3,280.20/4,530.26 = 2,858.60/x
  3. Step 3: Cross multiply
    3,280.20x = 4,530.26 × 2,858.60
  4. Step 4: Simplify right side
    3,280.20x = 12,950,201.24
  5. Step 5: Solve for x
    x = 12,950,201.24/3,280.20
  6. Step 6: Final answer
    x = 3,947.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.