Home / 4,911.73-6,777.02-2,786.78

Finding the Fourth Proportional to 4,911.73, 6,777.02 and 2,786.78

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Solution

The fourth proportional to 4,911.73, 6,777.02 and 2,786.78 is: 3,845.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.73 : 6,777.02 = 2,786.78 : x
  2. Step 2: Convert to fraction form
    4,911.73/6,777.02 = 2,786.78/x
  3. Step 3: Cross multiply
    4,911.73x = 6,777.02 × 2,786.78
  4. Step 4: Simplify right side
    4,911.73x = 18,886,087.71
  5. Step 5: Solve for x
    x = 18,886,087.71/4,911.73
  6. Step 6: Final answer
    x = 3,845.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.