Home / 3,948.44-5,448.87-2,180.34

Finding the Fourth Proportional to 3,948.44, 5,448.87 and 2,180.34

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Solution

The fourth proportional to 3,948.44, 5,448.87 and 2,180.34 is: 3,008.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.44 : 5,448.87 = 2,180.34 : x
  2. Step 2: Convert to fraction form
    3,948.44/5,448.87 = 2,180.34/x
  3. Step 3: Cross multiply
    3,948.44x = 5,448.87 × 2,180.34
  4. Step 4: Simplify right side
    3,948.44x = 11,880,389.22
  5. Step 5: Solve for x
    x = 11,880,389.22/3,948.44
  6. Step 6: Final answer
    x = 3,008.89

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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.