Home / 3,515.15-5,268.54-1,638.52

Finding the Fourth Proportional to 3,515.15, 5,268.54 and 1,638.52

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Solution

The fourth proportional to 3,515.15, 5,268.54 and 1,638.52 is: 2,455.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.15 : 5,268.54 = 1,638.52 : x
  2. Step 2: Convert to fraction form
    3,515.15/5,268.54 = 1,638.52/x
  3. Step 3: Cross multiply
    3,515.15x = 5,268.54 × 1,638.52
  4. Step 4: Simplify right side
    3,515.15x = 8,632,608.16
  5. Step 5: Solve for x
    x = 8,632,608.16/3,515.15
  6. Step 6: Final answer
    x = 2,455.83

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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.