Home / 2,091.20-3,135.17-936.14

Finding the Fourth Proportional to 2,091.20, 3,135.17 and 936.14

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Solution

The fourth proportional to 2,091.20, 3,135.17 and 936.14 is: 1,403.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.20 : 3,135.17 = 936.14 : x
  2. Step 2: Convert to fraction form
    2,091.20/3,135.17 = 936.14/x
  3. Step 3: Cross multiply
    2,091.20x = 3,135.17 × 936.14
  4. Step 4: Simplify right side
    2,091.20x = 2,934,962.34
  5. Step 5: Solve for x
    x = 2,934,962.34/2,091.20
  6. Step 6: Final answer
    x = 1,403.48

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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.