Home / 6,306.78-9,456.42-2,145.60

Finding the Fourth Proportional to 6,306.78, 9,456.42 and 2,145.60

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Solution

The fourth proportional to 6,306.78, 9,456.42 and 2,145.60 is: 3,217.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,306.78 : 9,456.42 = 2,145.60 : x
  2. Step 2: Convert to fraction form
    6,306.78/9,456.42 = 2,145.60/x
  3. Step 3: Cross multiply
    6,306.78x = 9,456.42 × 2,145.60
  4. Step 4: Simplify right side
    6,306.78x = 20,289,694.75
  5. Step 5: Solve for x
    x = 20,289,694.75/6,306.78
  6. Step 6: Final answer
    x = 3,217.12

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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.