Home / 3,948.34-5,448.61-2,180.11

Finding the Fourth Proportional to 3,948.34, 5,448.61 and 2,180.11

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Solution

The fourth proportional to 3,948.34, 5,448.61 and 2,180.11 is: 3,008.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.34 : 5,448.61 = 2,180.11 : x
  2. Step 2: Convert to fraction form
    3,948.34/5,448.61 = 2,180.11/x
  3. Step 3: Cross multiply
    3,948.34x = 5,448.61 × 2,180.11
  4. Step 4: Simplify right side
    3,948.34x = 11,878,569.15
  5. Step 5: Solve for x
    x = 11,878,569.15/3,948.34
  6. Step 6: Final answer
    x = 3,008.50

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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.