Home / 3,678.54-5,077.05-2,187.27

Finding the Fourth Proportional to 3,678.54, 5,077.05 and 2,187.27

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Solution

The fourth proportional to 3,678.54, 5,077.05 and 2,187.27 is: 3,018.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.54 : 5,077.05 = 2,187.27 : x
  2. Step 2: Convert to fraction form
    3,678.54/5,077.05 = 2,187.27/x
  3. Step 3: Cross multiply
    3,678.54x = 5,077.05 × 2,187.27
  4. Step 4: Simplify right side
    3,678.54x = 11,104,879.15
  5. Step 5: Solve for x
    x = 11,104,879.15/3,678.54
  6. Step 6: Final answer
    x = 3,018.83

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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.