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Finding the Fourth Proportional to 6,785.91, 10,182.87 and 3,786.46

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Solution

The fourth proportional to 6,785.91, 10,182.87 and 3,786.46 is: 5,681.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,785.91 : 10,182.87 = 3,786.46 : x
  2. Step 2: Convert to fraction form
    6,785.91/10,182.87 = 3,786.46/x
  3. Step 3: Cross multiply
    6,785.91x = 10,182.87 × 3,786.46
  4. Step 4: Simplify right side
    6,785.91x = 38,557,029.94
  5. Step 5: Solve for x
    x = 38,557,029.94/6,785.91
  6. Step 6: Final answer
    x = 5,681.92

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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.