Home / 3,887.75-5,364.96-2,208.94

Finding the Fourth Proportional to 3,887.75, 5,364.96 and 2,208.94

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Solution

The fourth proportional to 3,887.75, 5,364.96 and 2,208.94 is: 3,048.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.75 : 5,364.96 = 2,208.94 : x
  2. Step 2: Convert to fraction form
    3,887.75/5,364.96 = 2,208.94/x
  3. Step 3: Cross multiply
    3,887.75x = 5,364.96 × 2,208.94
  4. Step 4: Simplify right side
    3,887.75x = 11,850,874.74
  5. Step 5: Solve for x
    x = 11,850,874.74/3,887.75
  6. Step 6: Final answer
    x = 3,048.26

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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.