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Finding the Fourth Proportional to 3,352.59, 5,028.87 and 1,403.40

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Solution

The fourth proportional to 3,352.59, 5,028.87 and 1,403.40 is: 2,105.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,352.59 : 5,028.87 = 1,403.40 : x
  2. Step 2: Convert to fraction form
    3,352.59/5,028.87 = 1,403.40/x
  3. Step 3: Cross multiply
    3,352.59x = 5,028.87 × 1,403.40
  4. Step 4: Simplify right side
    3,352.59x = 7,057,516.16
  5. Step 5: Solve for x
    x = 7,057,516.16/3,352.59
  6. Step 6: Final answer
    x = 2,105.09

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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.