Home / 3,060.80-4,222.24-1,817.92

Finding the Fourth Proportional to 3,060.80, 4,222.24 and 1,817.92

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Solution

The fourth proportional to 3,060.80, 4,222.24 and 1,817.92 is: 2,507.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,060.80 : 4,222.24 = 1,817.92 : x
  2. Step 2: Convert to fraction form
    3,060.80/4,222.24 = 1,817.92/x
  3. Step 3: Cross multiply
    3,060.80x = 4,222.24 × 1,817.92
  4. Step 4: Simplify right side
    3,060.80x = 7,675,694.54
  5. Step 5: Solve for x
    x = 7,675,694.54/3,060.80
  6. Step 6: Final answer
    x = 2,507.74

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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.