Home / 2,206.68-3,045.23-1,212.06

Finding the Fourth Proportional to 2,206.68, 3,045.23 and 1,212.06

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Solution

The fourth proportional to 2,206.68, 3,045.23 and 1,212.06 is: 1,672.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206.68 : 3,045.23 = 1,212.06 : x
  2. Step 2: Convert to fraction form
    2,206.68/3,045.23 = 1,212.06/x
  3. Step 3: Cross multiply
    2,206.68x = 3,045.23 × 1,212.06
  4. Step 4: Simplify right side
    2,206.68x = 3,690,995.41
  5. Step 5: Solve for x
    x = 3,690,995.41/2,206.68
  6. Step 6: Final answer
    x = 1,672.65

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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.