Home / 2,122.57-3,185.69-1,473.76

Finding the Fourth Proportional to 2,122.57, 3,185.69 and 1,473.76

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Solution

The fourth proportional to 2,122.57, 3,185.69 and 1,473.76 is: 2,211.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122.57 : 3,185.69 = 1,473.76 : x
  2. Step 2: Convert to fraction form
    2,122.57/3,185.69 = 1,473.76/x
  3. Step 3: Cross multiply
    2,122.57x = 3,185.69 × 1,473.76
  4. Step 4: Simplify right side
    2,122.57x = 4,694,942.49
  5. Step 5: Solve for x
    x = 4,694,942.49/2,122.57
  6. Step 6: Final answer
    x = 2,211.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.