Home / 5,090.07-7,634.09-1,391.43

Finding the Fourth Proportional to 5,090.07, 7,634.09 and 1,391.43

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Solution

The fourth proportional to 5,090.07, 7,634.09 and 1,391.43 is: 2,086.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.07 : 7,634.09 = 1,391.43 : x
  2. Step 2: Convert to fraction form
    5,090.07/7,634.09 = 1,391.43/x
  3. Step 3: Cross multiply
    5,090.07x = 7,634.09 × 1,391.43
  4. Step 4: Simplify right side
    5,090.07x = 10,622,301.85
  5. Step 5: Solve for x
    x = 10,622,301.85/5,090.07
  6. Step 6: Final answer
    x = 2,086.87

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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.