Home / 3,821.42-5,732.15-1,628.75

Finding the Fourth Proportional to 3,821.42, 5,732.15 and 1,628.75

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Solution

The fourth proportional to 3,821.42, 5,732.15 and 1,628.75 is: 2,443.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.42 : 5,732.15 = 1,628.75 : x
  2. Step 2: Convert to fraction form
    3,821.42/5,732.15 = 1,628.75/x
  3. Step 3: Cross multiply
    3,821.42x = 5,732.15 × 1,628.75
  4. Step 4: Simplify right side
    3,821.42x = 9,336,245.50
  5. Step 5: Solve for x
    x = 9,336,245.50/3,821.42
  6. Step 6: Final answer
    x = 2,443.13

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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.