Home / 3,451.72-5,178.36-1,809.04

Finding the Fourth Proportional to 3,451.72, 5,178.36 and 1,809.04

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Solution

The fourth proportional to 3,451.72, 5,178.36 and 1,809.04 is: 2,713.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,451.72 : 5,178.36 = 1,809.04 : x
  2. Step 2: Convert to fraction form
    3,451.72/5,178.36 = 1,809.04/x
  3. Step 3: Cross multiply
    3,451.72x = 5,178.36 × 1,809.04
  4. Step 4: Simplify right side
    3,451.72x = 9,367,860.37
  5. Step 5: Solve for x
    x = 9,367,860.37/3,451.72
  6. Step 6: Final answer
    x = 2,713.97

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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.