Home / 5,217.78-7,821.14-2,442.12

Finding the Fourth Proportional to 5,217.78, 7,821.14 and 2,442.12

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Solution

The fourth proportional to 5,217.78, 7,821.14 and 2,442.12 is: 3,660.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.78 : 7,821.14 = 2,442.12 : x
  2. Step 2: Convert to fraction form
    5,217.78/7,821.14 = 2,442.12/x
  3. Step 3: Cross multiply
    5,217.78x = 7,821.14 × 2,442.12
  4. Step 4: Simplify right side
    5,217.78x = 19,100,162.42
  5. Step 5: Solve for x
    x = 19,100,162.42/5,217.78
  6. Step 6: Final answer
    x = 3,660.59

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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.