Home / 4,452.20-6,678.25-1,821.12

Finding the Fourth Proportional to 4,452.20, 6,678.25 and 1,821.12

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Solution

The fourth proportional to 4,452.20, 6,678.25 and 1,821.12 is: 2,731.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,452.20 : 6,678.25 = 1,821.12 : x
  2. Step 2: Convert to fraction form
    4,452.20/6,678.25 = 1,821.12/x
  3. Step 3: Cross multiply
    4,452.20x = 6,678.25 × 1,821.12
  4. Step 4: Simplify right side
    4,452.20x = 12,161,865.04
  5. Step 5: Solve for x
    x = 12,161,865.04/4,452.20
  6. Step 6: Final answer
    x = 2,731.65

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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.