Home / 3,426.32-5,141.64-1,785.80

Finding the Fourth Proportional to 3,426.32, 5,141.64 and 1,785.80

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Solution

The fourth proportional to 3,426.32, 5,141.64 and 1,785.80 is: 2,679.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.32 : 5,141.64 = 1,785.80 : x
  2. Step 2: Convert to fraction form
    3,426.32/5,141.64 = 1,785.80/x
  3. Step 3: Cross multiply
    3,426.32x = 5,141.64 × 1,785.80
  4. Step 4: Simplify right side
    3,426.32x = 9,181,940.71
  5. Step 5: Solve for x
    x = 9,181,940.71/3,426.32
  6. Step 6: Final answer
    x = 2,679.83

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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.