Home / 3,226.20-4,839.30-2,829.40

Finding the Fourth Proportional to 3,226.20, 4,839.30 and 2,829.40

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Solution

The fourth proportional to 3,226.20, 4,839.30 and 2,829.40 is: 4,244.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,226.20 : 4,839.30 = 2,829.40 : x
  2. Step 2: Convert to fraction form
    3,226.20/4,839.30 = 2,829.40/x
  3. Step 3: Cross multiply
    3,226.20x = 4,839.30 × 2,829.40
  4. Step 4: Simplify right side
    3,226.20x = 13,692,315.42
  5. Step 5: Solve for x
    x = 13,692,315.42/3,226.20
  6. Step 6: Final answer
    x = 4,244.10

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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.