Home / 2,090.14-3,134.18-791.71

Finding the Fourth Proportional to 2,090.14, 3,134.18 and 791.71

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Solution

The fourth proportional to 2,090.14, 3,134.18 and 791.71 is: 1,187.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,090.14 : 3,134.18 = 791.71 : x
  2. Step 2: Convert to fraction form
    2,090.14/3,134.18 = 791.71/x
  3. Step 3: Cross multiply
    2,090.14x = 3,134.18 × 791.71
  4. Step 4: Simplify right side
    2,090.14x = 2,481,355.79
  5. Step 5: Solve for x
    x = 2,481,355.79/2,090.14
  6. Step 6: Final answer
    x = 1,187.17

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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.