Home / 1,394.28-2,090.06-516.53

Finding the Fourth Proportional to 1,394.28, 2,090.06 and 516.53

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Solution

The fourth proportional to 1,394.28, 2,090.06 and 516.53 is: 774.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394.28 : 2,090.06 = 516.53 : x
  2. Step 2: Convert to fraction form
    1,394.28/2,090.06 = 516.53/x
  3. Step 3: Cross multiply
    1,394.28x = 2,090.06 × 516.53
  4. Step 4: Simplify right side
    1,394.28x = 1,079,578.69
  5. Step 5: Solve for x
    x = 1,079,578.69/1,394.28
  6. Step 6: Final answer
    x = 774.29

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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.