Home / 3,429.12-4,728.96-2,251.20

Finding the Fourth Proportional to 3,429.12, 4,728.96 and 2,251.20

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Solution

The fourth proportional to 3,429.12, 4,728.96 and 2,251.20 is: 3,104.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.12 : 4,728.96 = 2,251.20 : x
  2. Step 2: Convert to fraction form
    3,429.12/4,728.96 = 2,251.20/x
  3. Step 3: Cross multiply
    3,429.12x = 4,728.96 × 2,251.20
  4. Step 4: Simplify right side
    3,429.12x = 10,645,834.75
  5. Step 5: Solve for x
    x = 10,645,834.75/3,429.12
  6. Step 6: Final answer
    x = 3,104.54

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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.