Home / 3,609.45-4,980.23-2,116.82

Finding the Fourth Proportional to 3,609.45, 4,980.23 and 2,116.82

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Solution

The fourth proportional to 3,609.45, 4,980.23 and 2,116.82 is: 2,920.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.45 : 4,980.23 = 2,116.82 : x
  2. Step 2: Convert to fraction form
    3,609.45/4,980.23 = 2,116.82/x
  3. Step 3: Cross multiply
    3,609.45x = 4,980.23 × 2,116.82
  4. Step 4: Simplify right side
    3,609.45x = 10,542,214.98
  5. Step 5: Solve for x
    x = 10,542,214.98/3,609.45
  6. Step 6: Final answer
    x = 2,920.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.