Home / 3,678.92-5,076.93-2,186.54

Finding the Fourth Proportional to 3,678.92, 5,076.93 and 2,186.54

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Solution

The fourth proportional to 3,678.92, 5,076.93 and 2,186.54 is: 3,017.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.92 : 5,076.93 = 2,186.54 : x
  2. Step 2: Convert to fraction form
    3,678.92/5,076.93 = 2,186.54/x
  3. Step 3: Cross multiply
    3,678.92x = 5,076.93 × 2,186.54
  4. Step 4: Simplify right side
    3,678.92x = 11,100,928.63
  5. Step 5: Solve for x
    x = 11,100,928.63/3,678.92
  6. Step 6: Final answer
    x = 3,017.44

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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.