Home / 3,186.70-4,784.19-2,456.80

Finding the Fourth Proportional to 3,186.70, 4,784.19 and 2,456.80

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Solution

The fourth proportional to 3,186.70, 4,784.19 and 2,456.80 is: 3,688.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.70 : 4,784.19 = 2,456.80 : x
  2. Step 2: Convert to fraction form
    3,186.70/4,784.19 = 2,456.80/x
  3. Step 3: Cross multiply
    3,186.70x = 4,784.19 × 2,456.80
  4. Step 4: Simplify right side
    3,186.70x = 11,753,797.99
  5. Step 5: Solve for x
    x = 11,753,797.99/3,186.70
  6. Step 6: Final answer
    x = 3,688.39

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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.