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Finding the Fourth Proportional to 2,450, 3,381.72 and 1,518.32

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Solution

The fourth proportional to 2,450, 3,381.72 and 1,518.32 is: 2,095.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,450 : 3,381.72 = 1,518.32 : x
  2. Step 2: Convert to fraction form
    2,450/3,381.72 = 1,518.32/x
  3. Step 3: Cross multiply
    2,450x = 3,381.72 × 1,518.32
  4. Step 4: Simplify right side
    2,450x = 5,134,533.11
  5. Step 5: Solve for x
    x = 5,134,533.11/2,450
  6. Step 6: Final answer
    x = 2,095.73

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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.