Home / 2,206.95-3,045.55-1,212.22

Finding the Fourth Proportional to 2,206.95, 3,045.55 and 1,212.22

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Solution

The fourth proportional to 2,206.95, 3,045.55 and 1,212.22 is: 1,672.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206.95 : 3,045.55 = 1,212.22 : x
  2. Step 2: Convert to fraction form
    2,206.95/3,045.55 = 1,212.22/x
  3. Step 3: Cross multiply
    2,206.95x = 3,045.55 × 1,212.22
  4. Step 4: Simplify right side
    2,206.95x = 3,691,862.54
  5. Step 5: Solve for x
    x = 3,691,862.54/2,206.95
  6. Step 6: Final answer
    x = 1,672.84

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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.