Home / 3,948.43-5,448.75-2,180.02

Finding the Fourth Proportional to 3,948.43, 5,448.75 and 2,180.02

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Solution

The fourth proportional to 3,948.43, 5,448.75 and 2,180.02 is: 3,008.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.43 : 5,448.75 = 2,180.02 : x
  2. Step 2: Convert to fraction form
    3,948.43/5,448.75 = 2,180.02/x
  3. Step 3: Cross multiply
    3,948.43x = 5,448.75 × 2,180.02
  4. Step 4: Simplify right side
    3,948.43x = 11,878,383.98
  5. Step 5: Solve for x
    x = 11,878,383.98/3,948.43
  6. Step 6: Final answer
    x = 3,008.38

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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.