Home / 3,403.28-5,104.98-1,428.48

Finding the Fourth Proportional to 3,403.28, 5,104.98 and 1,428.48

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Solution

The fourth proportional to 3,403.28, 5,104.98 and 1,428.48 is: 2,142.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,403.28 : 5,104.98 = 1,428.48 : x
  2. Step 2: Convert to fraction form
    3,403.28/5,104.98 = 1,428.48/x
  3. Step 3: Cross multiply
    3,403.28x = 5,104.98 × 1,428.48
  4. Step 4: Simplify right side
    3,403.28x = 7,292,361.83
  5. Step 5: Solve for x
    x = 7,292,361.83/3,403.28
  6. Step 6: Final answer
    x = 2,142.75

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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.