Home / 2,811.82-3,880.28-1,552.96

Finding the Fourth Proportional to 2,811.82, 3,880.28 and 1,552.96

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Solution

The fourth proportional to 2,811.82, 3,880.28 and 1,552.96 is: 2,143.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.82 : 3,880.28 = 1,552.96 : x
  2. Step 2: Convert to fraction form
    2,811.82/3,880.28 = 1,552.96/x
  3. Step 3: Cross multiply
    2,811.82x = 3,880.28 × 1,552.96
  4. Step 4: Simplify right side
    2,811.82x = 6,025,900.23
  5. Step 5: Solve for x
    x = 6,025,900.23/2,811.82
  6. Step 6: Final answer
    x = 2,143.06

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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.