Home / 3,678.29-5,518.97-1,486.46

Finding the Fourth Proportional to 3,678.29, 5,518.97 and 1,486.46

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Solution

The fourth proportional to 3,678.29, 5,518.97 and 1,486.46 is: 2,230.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.29 : 5,518.97 = 1,486.46 : x
  2. Step 2: Convert to fraction form
    3,678.29/5,518.97 = 1,486.46/x
  3. Step 3: Cross multiply
    3,678.29x = 5,518.97 × 1,486.46
  4. Step 4: Simplify right side
    3,678.29x = 8,203,728.15
  5. Step 5: Solve for x
    x = 8,203,728.15/3,678.29
  6. Step 6: Final answer
    x = 2,230.31

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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.