Home / 3,459.79-5,189.67-1,609.89

Finding the Fourth Proportional to 3,459.79, 5,189.67 and 1,609.89

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Solution

The fourth proportional to 3,459.79, 5,189.67 and 1,609.89 is: 2,414.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,459.79 : 5,189.67 = 1,609.89 : x
  2. Step 2: Convert to fraction form
    3,459.79/5,189.67 = 1,609.89/x
  3. Step 3: Cross multiply
    3,459.79x = 5,189.67 × 1,609.89
  4. Step 4: Simplify right side
    3,459.79x = 8,354,778.38
  5. Step 5: Solve for x
    x = 8,354,778.38/3,459.79
  6. Step 6: Final answer
    x = 2,414.82

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1.5x scale

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.