Home / 6,785.81-10,177.43-2,105.22

Finding the Fourth Proportional to 6,785.81, 10,177.43 and 2,105.22

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Solution

The fourth proportional to 6,785.81, 10,177.43 and 2,105.22 is: 3,157.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,785.81 : 10,177.43 = 2,105.22 : x
  2. Step 2: Convert to fraction form
    6,785.81/10,177.43 = 2,105.22/x
  3. Step 3: Cross multiply
    6,785.81x = 10,177.43 × 2,105.22
  4. Step 4: Simplify right side
    6,785.81x = 21,425,718.66
  5. Step 5: Solve for x
    x = 21,425,718.66/6,785.81
  6. Step 6: Final answer
    x = 3,157.43

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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.