Home / 3,957.31-5,461.17-2,189.04

Finding the Fourth Proportional to 3,957.31, 5,461.17 and 2,189.04

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Solution

The fourth proportional to 3,957.31, 5,461.17 and 2,189.04 is: 3,020.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.31 : 5,461.17 = 2,189.04 : x
  2. Step 2: Convert to fraction form
    3,957.31/5,461.17 = 2,189.04/x
  3. Step 3: Cross multiply
    3,957.31x = 5,461.17 × 2,189.04
  4. Step 4: Simplify right side
    3,957.31x = 11,954,719.58
  5. Step 5: Solve for x
    x = 11,954,719.58/3,957.31
  6. Step 6: Final answer
    x = 3,020.92

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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.