Home / 3,218.28-4,829.85-2,122.26

Finding the Fourth Proportional to 3,218.28, 4,829.85 and 2,122.26

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Solution

The fourth proportional to 3,218.28, 4,829.85 and 2,122.26 is: 3,184.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.28 : 4,829.85 = 2,122.26 : x
  2. Step 2: Convert to fraction form
    3,218.28/4,829.85 = 2,122.26/x
  3. Step 3: Cross multiply
    3,218.28x = 4,829.85 × 2,122.26
  4. Step 4: Simplify right side
    3,218.28x = 10,250,197.46
  5. Step 5: Solve for x
    x = 10,250,197.46/3,218.28
  6. Step 6: Final answer
    x = 3,184.99

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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.