Home / 2,160.38-2,979.90-1,996.34

Finding the Fourth Proportional to 2,160.38, 2,979.90 and 1,996.34

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Solution

The fourth proportional to 2,160.38, 2,979.90 and 1,996.34 is: 2,753.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160.38 : 2,979.90 = 1,996.34 : x
  2. Step 2: Convert to fraction form
    2,160.38/2,979.90 = 1,996.34/x
  3. Step 3: Cross multiply
    2,160.38x = 2,979.90 × 1,996.34
  4. Step 4: Simplify right side
    2,160.38x = 5,948,893.57
  5. Step 5: Solve for x
    x = 5,948,893.57/2,160.38
  6. Step 6: Final answer
    x = 2,753.63

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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.