Home / 3,381.66-4,660.86-2,785.92

Finding the Fourth Proportional to 3,381.66, 4,660.86 and 2,785.92

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Solution

The fourth proportional to 3,381.66, 4,660.86 and 2,785.92 is: 3,839.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,381.66 : 4,660.86 = 2,785.92 : x
  2. Step 2: Convert to fraction form
    3,381.66/4,660.86 = 2,785.92/x
  3. Step 3: Cross multiply
    3,381.66x = 4,660.86 × 2,785.92
  4. Step 4: Simplify right side
    3,381.66x = 12,984,783.09
  5. Step 5: Solve for x
    x = 12,984,783.09/3,381.66
  6. Step 6: Final answer
    x = 3,839.77

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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.