Home / 4,078.25-5,625.98-2,661.28

Finding the Fourth Proportional to 4,078.25, 5,625.98 and 2,661.28

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Solution

The fourth proportional to 4,078.25, 5,625.98 and 2,661.28 is: 3,671.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.25 : 5,625.98 = 2,661.28 : x
  2. Step 2: Convert to fraction form
    4,078.25/5,625.98 = 2,661.28/x
  3. Step 3: Cross multiply
    4,078.25x = 5,625.98 × 2,661.28
  4. Step 4: Simplify right side
    4,078.25x = 14,972,313.97
  5. Step 5: Solve for x
    x = 14,972,313.97/4,078.25
  6. Step 6: Final answer
    x = 3,671.26

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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.