Home / 3,887.67-5,364.79-2,208.86

Finding the Fourth Proportional to 3,887.67, 5,364.79 and 2,208.86

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Solution

The fourth proportional to 3,887.67, 5,364.79 and 2,208.86 is: 3,048.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.67 : 5,364.79 = 2,208.86 : x
  2. Step 2: Convert to fraction form
    3,887.67/5,364.79 = 2,208.86/x
  3. Step 3: Cross multiply
    3,887.67x = 5,364.79 × 2,208.86
  4. Step 4: Simplify right side
    3,887.67x = 11,850,070.04
  5. Step 5: Solve for x
    x = 11,850,070.04/3,887.67
  6. Step 6: Final answer
    x = 3,048.12

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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.