Home / 3,948.48-5,448.82-2,180.05

Finding the Fourth Proportional to 3,948.48, 5,448.82 and 2,180.05

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Solution

The fourth proportional to 3,948.48, 5,448.82 and 2,180.05 is: 3,008.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.48 : 5,448.82 = 2,180.05 : x
  2. Step 2: Convert to fraction form
    3,948.48/5,448.82 = 2,180.05/x
  3. Step 3: Cross multiply
    3,948.48x = 5,448.82 × 2,180.05
  4. Step 4: Simplify right side
    3,948.48x = 11,878,685.06
  5. Step 5: Solve for x
    x = 11,878,685.06/3,948.48
  6. Step 6: Final answer
    x = 3,008.42

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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.