Home / 2,206.45-3,044.96-1,211.75

Finding the Fourth Proportional to 2,206.45, 3,044.96 and 1,211.75

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Solution

The fourth proportional to 2,206.45, 3,044.96 and 1,211.75 is: 1,672.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206.45 : 3,044.96 = 1,211.75 : x
  2. Step 2: Convert to fraction form
    2,206.45/3,044.96 = 1,211.75/x
  3. Step 3: Cross multiply
    2,206.45x = 3,044.96 × 1,211.75
  4. Step 4: Simplify right side
    2,206.45x = 3,689,730.28
  5. Step 5: Solve for x
    x = 3,689,730.28/2,206.45
  6. Step 6: Final answer
    x = 1,672.25

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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.