Home / 6,785.38-10,178.16-1,855.18

Finding the Fourth Proportional to 6,785.38, 10,178.16 and 1,855.18

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Solution

The fourth proportional to 6,785.38, 10,178.16 and 1,855.18 is: 2,782.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,785.38 : 10,178.16 = 1,855.18 : x
  2. Step 2: Convert to fraction form
    6,785.38/10,178.16 = 1,855.18/x
  3. Step 3: Cross multiply
    6,785.38x = 10,178.16 × 1,855.18
  4. Step 4: Simplify right side
    6,785.38x = 18,882,318.87
  5. Step 5: Solve for x
    x = 18,882,318.87/6,785.38
  6. Step 6: Final answer
    x = 2,782.79

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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.