Home / 2,821.07-4,211.42-2,452.12

Finding the Fourth Proportional to 2,821.07, 4,211.42 and 2,452.12

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Solution

The fourth proportional to 2,821.07, 4,211.42 and 2,452.12 is: 3,660.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.07 : 4,211.42 = 2,452.12 : x
  2. Step 2: Convert to fraction form
    2,821.07/4,211.42 = 2,452.12/x
  3. Step 3: Cross multiply
    2,821.07x = 4,211.42 × 2,452.12
  4. Step 4: Simplify right side
    2,821.07x = 10,326,884.42
  5. Step 5: Solve for x
    x = 10,326,884.42/2,821.07
  6. Step 6: Final answer
    x = 3,660.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.