Home / 3,918.53-5,410.11-2,428.03

Finding the Fourth Proportional to 3,918.53, 5,410.11 and 2,428.03

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Solution

The fourth proportional to 3,918.53, 5,410.11 and 2,428.03 is: 3,352.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.53 : 5,410.11 = 2,428.03 : x
  2. Step 2: Convert to fraction form
    3,918.53/5,410.11 = 2,428.03/x
  3. Step 3: Cross multiply
    3,918.53x = 5,410.11 × 2,428.03
  4. Step 4: Simplify right side
    3,918.53x = 13,135,911.59
  5. Step 5: Solve for x
    x = 13,135,911.59/3,918.53
  6. Step 6: Final answer
    x = 3,352.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.