Home / 2,091.28-3,138.14-937.03

Finding the Fourth Proportional to 2,091.28, 3,138.14 and 937.03

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Solution

The fourth proportional to 2,091.28, 3,138.14 and 937.03 is: 1,406.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.28 : 3,138.14 = 937.03 : x
  2. Step 2: Convert to fraction form
    2,091.28/3,138.14 = 937.03/x
  3. Step 3: Cross multiply
    2,091.28x = 3,138.14 × 937.03
  4. Step 4: Simplify right side
    2,091.28x = 2,940,531.32
  5. Step 5: Solve for x
    x = 2,940,531.32/2,091.28
  6. Step 6: Final answer
    x = 1,406.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.