Home / 3,609.45-5,382.65-3,211.23

Finding the Fourth Proportional to 3,609.45, 5,382.65 and 3,211.23

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Solution

The fourth proportional to 3,609.45, 5,382.65 and 3,211.23 is: 4,788.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.45 : 5,382.65 = 3,211.23 : x
  2. Step 2: Convert to fraction form
    3,609.45/5,382.65 = 3,211.23/x
  3. Step 3: Cross multiply
    3,609.45x = 5,382.65 × 3,211.23
  4. Step 4: Simplify right side
    3,609.45x = 17,284,911.10
  5. Step 5: Solve for x
    x = 17,284,911.10/3,609.45
  6. Step 6: Final answer
    x = 4,788.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.