Home / 2,217.44-3,060.08-1,222.70

Finding the Fourth Proportional to 2,217.44, 3,060.08 and 1,222.70

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Solution

The fourth proportional to 2,217.44, 3,060.08 and 1,222.70 is: 1,687.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.44 : 3,060.08 = 1,222.70 : x
  2. Step 2: Convert to fraction form
    2,217.44/3,060.08 = 1,222.70/x
  3. Step 3: Cross multiply
    2,217.44x = 3,060.08 × 1,222.70
  4. Step 4: Simplify right side
    2,217.44x = 3,741,570.52
  5. Step 5: Solve for x
    x = 3,741,570.52/2,217.44
  6. Step 6: Final answer
    x = 1,687.34

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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.