Home / 3,678.44-5,076.42-2,166.85

Finding the Fourth Proportional to 3,678.44, 5,076.42 and 2,166.85

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Solution

The fourth proportional to 3,678.44, 5,076.42 and 2,166.85 is: 2,990.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.44 : 5,076.42 = 2,166.85 : x
  2. Step 2: Convert to fraction form
    3,678.44/5,076.42 = 2,166.85/x
  3. Step 3: Cross multiply
    3,678.44x = 5,076.42 × 2,166.85
  4. Step 4: Simplify right side
    3,678.44x = 10,999,815.29
  5. Step 5: Solve for x
    x = 10,999,815.29/3,678.44
  6. Step 6: Final answer
    x = 2,990.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.