Home / 3,678.75-5,514.48-1,727.46

Finding the Fourth Proportional to 3,678.75, 5,514.48 and 1,727.46

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Solution

The fourth proportional to 3,678.75, 5,514.48 and 1,727.46 is: 2,589.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.75 : 5,514.48 = 1,727.46 : x
  2. Step 2: Convert to fraction form
    3,678.75/5,514.48 = 1,727.46/x
  3. Step 3: Cross multiply
    3,678.75x = 5,514.48 × 1,727.46
  4. Step 4: Simplify right side
    3,678.75x = 9,526,043.62
  5. Step 5: Solve for x
    x = 9,526,043.62/3,678.75
  6. Step 6: Final answer
    x = 2,589.48

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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.