Home / 3,105.10-4,653.84-1,643.32

Finding the Fourth Proportional to 3,105.10, 4,653.84 and 1,643.32

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Solution

The fourth proportional to 3,105.10, 4,653.84 and 1,643.32 is: 2,462.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.10 : 4,653.84 = 1,643.32 : x
  2. Step 2: Convert to fraction form
    3,105.10/4,653.84 = 1,643.32/x
  3. Step 3: Cross multiply
    3,105.10x = 4,653.84 × 1,643.32
  4. Step 4: Simplify right side
    3,105.10x = 7,647,748.35
  5. Step 5: Solve for x
    x = 7,647,748.35/3,105.10
  6. Step 6: Final answer
    x = 2,462.96

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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.