Home / 3,459.64-5,186.58-1,609.78

Finding the Fourth Proportional to 3,459.64, 5,186.58 and 1,609.78

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Solution

The fourth proportional to 3,459.64, 5,186.58 and 1,609.78 is: 2,413.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,459.64 : 5,186.58 = 1,609.78 : x
  2. Step 2: Convert to fraction form
    3,459.64/5,186.58 = 1,609.78/x
  3. Step 3: Cross multiply
    3,459.64x = 5,186.58 × 1,609.78
  4. Step 4: Simplify right side
    3,459.64x = 8,349,252.75
  5. Step 5: Solve for x
    x = 8,349,252.75/3,459.64
  6. Step 6: Final answer
    x = 2,413.33

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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.