Home / 3,106.72-4,660.62-2,783.80

Finding the Fourth Proportional to 3,106.72, 4,660.62 and 2,783.80

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Solution

The fourth proportional to 3,106.72, 4,660.62 and 2,783.80 is: 4,176.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.72 : 4,660.62 = 2,783.80 : x
  2. Step 2: Convert to fraction form
    3,106.72/4,660.62 = 2,783.80/x
  3. Step 3: Cross multiply
    3,106.72x = 4,660.62 × 2,783.80
  4. Step 4: Simplify right side
    3,106.72x = 12,974,233.96
  5. Step 5: Solve for x
    x = 12,974,233.96/3,106.72
  6. Step 6: Final answer
    x = 4,176.18

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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.