Home / 3,948.94-5,449.70-2,180.49

Finding the Fourth Proportional to 3,948.94, 5,449.70 and 2,180.49

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Solution

The fourth proportional to 3,948.94, 5,449.70 and 2,180.49 is: 3,009.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.94 : 5,449.70 = 2,180.49 : x
  2. Step 2: Convert to fraction form
    3,948.94/5,449.70 = 2,180.49/x
  3. Step 3: Cross multiply
    3,948.94x = 5,449.70 × 2,180.49
  4. Step 4: Simplify right side
    3,948.94x = 11,883,005.45
  5. Step 5: Solve for x
    x = 11,883,005.45/3,948.94
  6. Step 6: Final answer
    x = 3,009.16

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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.