Home / 2,206.76-3,045.27-1,212.03

Finding the Fourth Proportional to 2,206.76, 3,045.27 and 1,212.03

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Solution

The fourth proportional to 2,206.76, 3,045.27 and 1,212.03 is: 1,672.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206.76 : 3,045.27 = 1,212.03 : x
  2. Step 2: Convert to fraction form
    2,206.76/3,045.27 = 1,212.03/x
  3. Step 3: Cross multiply
    2,206.76x = 3,045.27 × 1,212.03
  4. Step 4: Simplify right side
    2,206.76x = 3,690,958.60
  5. Step 5: Solve for x
    x = 3,690,958.60/2,206.76
  6. Step 6: Final answer
    x = 1,672.57

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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.