Home / 3,216.20-4,827.54-2,172.92

Finding the Fourth Proportional to 3,216.20, 4,827.54 and 2,172.92

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Solution

The fourth proportional to 3,216.20, 4,827.54 and 2,172.92 is: 3,261.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.20 : 4,827.54 = 2,172.92 : x
  2. Step 2: Convert to fraction form
    3,216.20/4,827.54 = 2,172.92/x
  3. Step 3: Cross multiply
    3,216.20x = 4,827.54 × 2,172.92
  4. Step 4: Simplify right side
    3,216.20x = 10,489,858.22
  5. Step 5: Solve for x
    x = 10,489,858.22/3,216.20
  6. Step 6: Final answer
    x = 3,261.57

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1.5x scale

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.